From c6c70f4455d1eda91065e93cc4f7eddf4499b105 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 30 Jan 2017 19:17:35 +0100
Subject: exit: fix the setns() && PR_SET_CHILD_SUBREAPER interaction

find_new_reaper() checks same_thread_group(reaper, child_reaper) to
prevent the cross-namespace reparenting but this is not enough if the
exiting parent was injected by setns() + fork().

Suppose we have a process P in the root namespace and some namespace X.
P does setns() to enter the X namespace, and forks the child C.
C forks a grandchild G and exits.

The grandchild G should be re-parented to X->child_reaper, but in this
case the ->real_parent chain does not lead to ->child_reaper, so it will
be wrongly reparanted to P's sub-reaper or a global init.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
---
 kernel/exit.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

(limited to 'kernel/exit.c')

diff --git a/kernel/exit.c b/kernel/exit.c
index 8f14b866f9f6..5cfbd595f918 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -578,15 +578,18 @@ static struct task_struct *find_new_reaper(struct task_struct *father,
 		return thread;
 
 	if (father->signal->has_child_subreaper) {
+		unsigned int ns_level = task_pid(father)->level;
 		/*
 		 * Find the first ->is_child_subreaper ancestor in our pid_ns.
-		 * We start from father to ensure we can not look into another
-		 * namespace, this is safe because all its threads are dead.
+		 * We can't check reaper != child_reaper to ensure we do not
+		 * cross the namespaces, the exiting parent could be injected
+		 * by setns() + fork().
+		 * We check pid->level, this is slightly more efficient than
+		 * task_active_pid_ns(reaper) != task_active_pid_ns(father).
 		 */
-		for (reaper = father;
-		     !same_thread_group(reaper, child_reaper);
+		for (reaper = father->real_parent;
+		     task_pid(reaper)->level == ns_level;
 		     reaper = reaper->real_parent) {
-			/* call_usermodehelper() descendants need this check */
 			if (reaper == &init_task)
 				break;
 			if (!reaper->signal->is_child_subreaper)
-- 
cgit 


From ca49ca7114553587736fe78319e22f073b631380 Mon Sep 17 00:00:00 2001
From: Mike Rapoport <rppt@linux.vnet.ibm.com>
Date: Fri, 24 Feb 2017 14:58:25 -0800
Subject: userfaultfd: non-cooperative: add event for exit() notification

Allow userfaultfd monitor track termination of the processes that have
memory backed by the uffd.

[rppt@linux.vnet.ibm.com: add comment]
  Link: http://lkml.kernel.org/r/20170202135448.GB19804@rapoport-lnxLink: http://lkml.kernel.org/r/1485542673-24387-4-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/userfaultfd.c                 | 28 ++++++++++++++++++++++++++++
 include/linux/userfaultfd_k.h    |  7 +++++++
 include/uapi/linux/userfaultfd.h |  5 ++++-
 kernel/exit.c                    |  2 ++
 4 files changed, 41 insertions(+), 1 deletion(-)

(limited to 'kernel/exit.c')

diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 4c78458ea78d..b676575f2268 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -774,6 +774,34 @@ void userfaultfd_unmap_complete(struct mm_struct *mm, struct list_head *uf)
 	}
 }
 
+void userfaultfd_exit(struct mm_struct *mm)
+{
+	struct vm_area_struct *vma = mm->mmap;
+
+	/*
+	 * We can do the vma walk without locking because the caller
+	 * (exit_mm) knows it now has exclusive access
+	 */
+	while (vma) {
+		struct userfaultfd_ctx *ctx = vma->vm_userfaultfd_ctx.ctx;
+
+		if (ctx && (ctx->features & UFFD_FEATURE_EVENT_EXIT)) {
+			struct userfaultfd_wait_queue ewq;
+
+			userfaultfd_ctx_get(ctx);
+
+			msg_init(&ewq.msg);
+			ewq.msg.event = UFFD_EVENT_EXIT;
+
+			userfaultfd_event_wait_completion(ctx, &ewq);
+
+			ctx->features &= ~UFFD_FEATURE_EVENT_EXIT;
+		}
+
+		vma = vma->vm_next;
+	}
+}
+
 static int userfaultfd_release(struct inode *inode, struct file *file)
 {
 	struct userfaultfd_ctx *ctx = file->private_data;
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h
index a40be5d0661b..0468548acebf 100644
--- a/include/linux/userfaultfd_k.h
+++ b/include/linux/userfaultfd_k.h
@@ -72,6 +72,8 @@ extern int userfaultfd_unmap_prep(struct vm_area_struct *vma,
 extern void userfaultfd_unmap_complete(struct mm_struct *mm,
 				       struct list_head *uf);
 
+extern void userfaultfd_exit(struct mm_struct *mm);
+
 #else /* CONFIG_USERFAULTFD */
 
 /* mm helpers */
@@ -136,6 +138,11 @@ static inline void userfaultfd_unmap_complete(struct mm_struct *mm,
 					      struct list_head *uf)
 {
 }
+
+static inline void userfaultfd_exit(struct mm_struct *mm)
+{
+}
+
 #endif /* CONFIG_USERFAULTFD */
 
 #endif /* _LINUX_USERFAULTFD_K_H */
diff --git a/include/uapi/linux/userfaultfd.h b/include/uapi/linux/userfaultfd.h
index 3b059530dac9..c055947c5c98 100644
--- a/include/uapi/linux/userfaultfd.h
+++ b/include/uapi/linux/userfaultfd.h
@@ -18,7 +18,8 @@
  * means the userland is reading).
  */
 #define UFFD_API ((__u64)0xAA)
-#define UFFD_API_FEATURES (UFFD_FEATURE_EVENT_FORK |		\
+#define UFFD_API_FEATURES (UFFD_FEATURE_EVENT_EXIT |		\
+			   UFFD_FEATURE_EVENT_FORK |		\
 			   UFFD_FEATURE_EVENT_REMAP |		\
 			   UFFD_FEATURE_EVENT_REMOVE |	\
 			   UFFD_FEATURE_EVENT_UNMAP |		\
@@ -112,6 +113,7 @@ struct uffd_msg {
 #define UFFD_EVENT_REMAP	0x14
 #define UFFD_EVENT_REMOVE	0x15
 #define UFFD_EVENT_UNMAP	0x16
+#define UFFD_EVENT_EXIT		0x17
 
 /* flags for UFFD_EVENT_PAGEFAULT */
 #define UFFD_PAGEFAULT_FLAG_WRITE	(1<<0)	/* If this was a write fault */
@@ -161,6 +163,7 @@ struct uffdio_api {
 #define UFFD_FEATURE_MISSING_HUGETLBFS		(1<<4)
 #define UFFD_FEATURE_MISSING_SHMEM		(1<<5)
 #define UFFD_FEATURE_EVENT_UNMAP		(1<<6)
+#define UFFD_FEATURE_EVENT_EXIT			(1<<7)
 	__u64 features;
 
 	__u64 ioctls;
diff --git a/kernel/exit.c b/kernel/exit.c
index 9960accbf2ab..90b09ca35c84 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -45,6 +45,7 @@
 #include <linux/task_io_accounting_ops.h>
 #include <linux/tracehook.h>
 #include <linux/fs_struct.h>
+#include <linux/userfaultfd_k.h>
 #include <linux/init_task.h>
 #include <linux/perf_event.h>
 #include <trace/events/sched.h>
@@ -547,6 +548,7 @@ static void exit_mm(void)
 	enter_lazy_tlb(mm, current);
 	task_unlock(current);
 	mm_update_next_owner(mm);
+	userfaultfd_exit(mm);
 	mmput(mm);
 	if (test_thread_flag(TIF_MEMDIE))
 		exit_oom_victim();
-- 
cgit 


From f1f1007644ffc8051a4c11427d58b1967ae7b75a Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@oracle.com>
Date: Mon, 27 Feb 2017 14:30:07 -0800
Subject: mm: add new mmgrab() helper

Apart from adding the helper function itself, the rest of the kernel is
converted mechanically using:

  git grep -l 'atomic_inc.*mm_count' | xargs sed -i 's/atomic_inc(&\(.*\)->mm_count);/mmgrab\(\1\);/'
  git grep -l 'atomic_inc.*mm_count' | xargs sed -i 's/atomic_inc(&\(.*\)\.mm_count);/mmgrab\(\&\1\);/'

This is needed for a later patch that hooks into the helper, but might
be a worthwhile cleanup on its own.

(Michal Hocko provided most of the kerneldoc comment.)

Link: http://lkml.kernel.org/r/20161218123229.22952-1-vegard.nossum@oracle.com
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/alpha/kernel/smp.c                  |  2 +-
 arch/arc/kernel/smp.c                    |  2 +-
 arch/arm/kernel/smp.c                    |  2 +-
 arch/arm64/kernel/smp.c                  |  2 +-
 arch/blackfin/mach-common/smp.c          |  2 +-
 arch/hexagon/kernel/smp.c                |  2 +-
 arch/ia64/kernel/setup.c                 |  2 +-
 arch/m32r/kernel/setup.c                 |  2 +-
 arch/metag/kernel/smp.c                  |  2 +-
 arch/mips/kernel/traps.c                 |  2 +-
 arch/mn10300/kernel/smp.c                |  2 +-
 arch/parisc/kernel/smp.c                 |  2 +-
 arch/powerpc/kernel/smp.c                |  2 +-
 arch/s390/kernel/processor.c             |  2 +-
 arch/score/kernel/traps.c                |  2 +-
 arch/sh/kernel/smp.c                     |  2 +-
 arch/sparc/kernel/leon_smp.c             |  2 +-
 arch/sparc/kernel/smp_64.c               |  2 +-
 arch/sparc/kernel/sun4d_smp.c            |  2 +-
 arch/sparc/kernel/sun4m_smp.c            |  2 +-
 arch/sparc/kernel/traps_32.c             |  2 +-
 arch/sparc/kernel/traps_64.c             |  2 +-
 arch/tile/kernel/smpboot.c               |  2 +-
 arch/x86/kernel/cpu/common.c             |  4 ++--
 arch/xtensa/kernel/smp.c                 |  2 +-
 drivers/gpu/drm/amd/amdkfd/kfd_process.c |  2 +-
 drivers/gpu/drm/i915/i915_gem_userptr.c  |  2 +-
 drivers/infiniband/hw/hfi1/file_ops.c    |  2 +-
 fs/proc/base.c                           |  4 ++--
 fs/userfaultfd.c                         |  2 +-
 include/linux/sched.h                    | 22 ++++++++++++++++++++++
 kernel/exit.c                            |  2 +-
 kernel/futex.c                           |  2 +-
 kernel/sched/core.c                      |  4 ++--
 mm/khugepaged.c                          |  2 +-
 mm/ksm.c                                 |  2 +-
 mm/mmu_context.c                         |  2 +-
 mm/mmu_notifier.c                        |  2 +-
 mm/oom_kill.c                            |  4 ++--
 virt/kvm/kvm_main.c                      |  2 +-
 40 files changed, 65 insertions(+), 43 deletions(-)

(limited to 'kernel/exit.c')

diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 46bf263c3153..acb4b146a607 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -144,7 +144,7 @@ smp_callin(void)
 		alpha_mv.smp_callin();
 
 	/* All kernel threads share the same mm context.  */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	/* inform the notifiers about the new cpu */
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index 2afbafadb6ab..695624181682 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -140,7 +140,7 @@ void start_kernel_secondary(void)
 	setup_processor();
 
 	atomic_inc(&mm->mm_users);
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 7dd14e8395e6..c6514ce0fcbc 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -371,7 +371,7 @@ asmlinkage void secondary_start_kernel(void)
 	 * reference and switch to it.
 	 */
 	cpu = smp_processor_id();
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index a8ec5da530af..827d52d78b67 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -222,7 +222,7 @@ asmlinkage void secondary_start_kernel(void)
 	 * All kernel threads share the same mm context; grab a
 	 * reference and switch to it.
 	 */
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 
 	/*
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 23c4ef5f8bdc..bc5617ef7128 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -308,7 +308,7 @@ void secondary_start_kernel(void)
 
 	/* Attach the new idle task to the global mm. */
 	atomic_inc(&mm->mm_users);
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 
 	preempt_disable();
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 983bae7d2665..c02a6455839e 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -162,7 +162,7 @@ void start_secondary(void)
 	);
 
 	/*  Set the memory struct  */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	cpu = smp_processor_id();
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index c483ece3eb84..d68322966f33 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -994,7 +994,7 @@ cpu_init (void)
 	 */
 	ia64_setreg(_IA64_REG_CR_DCR,  (  IA64_DCR_DP | IA64_DCR_DK | IA64_DCR_DX | IA64_DCR_DR
 					| IA64_DCR_DA | IA64_DCR_DD | IA64_DCR_LC));
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 
diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
index 136c69f1fb8a..b18bc0bd6544 100644
--- a/arch/m32r/kernel/setup.c
+++ b/arch/m32r/kernel/setup.c
@@ -403,7 +403,7 @@ void __init cpu_init (void)
 	printk(KERN_INFO "Initializing CPU#%d\n", cpu_id);
 
 	/* Set up and load the per-CPU TSS and LDT */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	if (current->mm)
 		BUG();
diff --git a/arch/metag/kernel/smp.c b/arch/metag/kernel/smp.c
index bad13232de51..af9cff547a19 100644
--- a/arch/metag/kernel/smp.c
+++ b/arch/metag/kernel/smp.c
@@ -345,7 +345,7 @@ asmlinkage void secondary_start_kernel(void)
 	 * reference and switch to it.
 	 */
 	atomic_inc(&mm->mm_users);
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 	enter_lazy_tlb(mm, current);
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index cb479be31a50..49c6df20672a 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -2232,7 +2232,7 @@ void per_cpu_trap_init(bool is_boot_cpu)
 	if (!cpu_data[cpu].asid_cache)
 		cpu_data[cpu].asid_cache = asid_first_version(cpu);
 
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index 426173c4b0b9..e65b5cc2fa67 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -589,7 +589,7 @@ static void __init smp_cpu_init(void)
 	}
 	printk(KERN_INFO "Initializing CPU#%d\n", cpu_id);
 
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 75dab2871346..67b452b41ff6 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -279,7 +279,7 @@ smp_cpu_init(int cpunum)
 	set_cpu_online(cpunum, true);
 
 	/* Initialise the idle task for this CPU */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 893bd7f79be6..573fb3a461b5 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -707,7 +707,7 @@ void start_secondary(void *unused)
 	unsigned int cpu = smp_processor_id();
 	int i, base;
 
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	smp_store_cpu_info(cpu);
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 21004aaac69b..bc2b60dcb178 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -73,7 +73,7 @@ void cpu_init(void)
 	get_cpu_id(id);
 	if (machine_has_cpu_mhz)
 		update_cpu_mhz(NULL);
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);
diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c
index 2b22bcf02c27..569ac02f68df 100644
--- a/arch/score/kernel/traps.c
+++ b/arch/score/kernel/traps.c
@@ -336,7 +336,7 @@ void __init trap_init(void)
 	set_except_vector(18, handle_dbe);
 	flush_icache_range(DEBUG_VECTOR_BASE_ADDR, IRQ_VECTOR_BASE_ADDR);
 
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	cpu_cache_init();
 }
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 38e7860845db..ee379c699c08 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -178,7 +178,7 @@ asmlinkage void start_secondary(void)
 	struct mm_struct *mm = &init_mm;
 
 	enable_mmu();
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	atomic_inc(&mm->mm_users);
 	current->active_mm = mm;
 #ifdef CONFIG_MMU
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index 71e16f2241c2..b99d33797e1d 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -93,7 +93,7 @@ void leon_cpu_pre_online(void *arg)
 			     : "memory" /* paranoid */);
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	while (!cpumask_test_cpu(cpuid, &smp_commenced_mask))
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 90a02cb64e20..8e3e13924594 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -122,7 +122,7 @@ void smp_callin(void)
 	current_thread_info()->new_child = 0;
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	/* inform the notifiers about the new cpu */
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 9d98e5002a09..7b55c50eabe5 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -93,7 +93,7 @@ void sun4d_cpu_pre_online(void *arg)
 	show_leds(cpuid);
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	local_ops->cache_all();
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 278c40abce82..633c4cf6fdb0 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -59,7 +59,7 @@ void sun4m_cpu_pre_online(void *arg)
 			     : "memory" /* paranoid */);
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	while (!cpumask_test_cpu(cpuid, &smp_commenced_mask))
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 4f21df7d4f13..ecddac5a4c96 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -448,7 +448,7 @@ void trap_init(void)
 		thread_info_offsets_are_bolixed_pete();
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	/* NOTE: Other cpus have this done as they are started
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index dfc97a47c9a0..e022d7b00390 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2837,6 +2837,6 @@ void __init trap_init(void)
 	/* Attach to the address space of init_task.  On SMP we
 	 * do this in smp.c:smp_callin for other cpus.
 	 */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 }
diff --git a/arch/tile/kernel/smpboot.c b/arch/tile/kernel/smpboot.c
index 6c0abaacec33..53ce940a5016 100644
--- a/arch/tile/kernel/smpboot.c
+++ b/arch/tile/kernel/smpboot.c
@@ -160,7 +160,7 @@ static void start_secondary(void)
 	__this_cpu_write(current_asid, min_asid);
 
 	/* Set up this thread as another owner of the init_mm */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	if (current->mm)
 		BUG();
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index f07005e6f461..c64ca5929cb5 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1510,7 +1510,7 @@ void cpu_init(void)
 	for (i = 0; i <= IO_BITMAP_LONGS; i++)
 		t->io_bitmap[i] = ~0UL;
 
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	me->active_mm = &init_mm;
 	BUG_ON(me->mm);
 	enter_lazy_tlb(&init_mm, me);
@@ -1561,7 +1561,7 @@ void cpu_init(void)
 	/*
 	 * Set up and load the per-CPU TSS and LDT
 	 */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	curr->active_mm = &init_mm;
 	BUG_ON(curr->mm);
 	enter_lazy_tlb(&init_mm, curr);
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index fc4ad21a5ed4..9bf5cea3bae4 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c
@@ -136,7 +136,7 @@ void secondary_start_kernel(void)
 	/* All kernel threads share the same mm context. */
 
 	atomic_inc(&mm->mm_users);
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 	enter_lazy_tlb(mm, current);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index ef7c8de7060e..ca5f2aa7232d 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -262,7 +262,7 @@ static void kfd_process_notifier_release(struct mmu_notifier *mn,
 	 * and because the mmu_notifier_unregister function also drop
 	 * mm_count we need to take an extra count here.
 	 */
-	atomic_inc(&p->mm->mm_count);
+	mmgrab(p->mm);
 	mmu_notifier_unregister_no_release(&p->mmu_notifier, p->mm);
 	mmu_notifier_call_srcu(&p->rcu, &kfd_process_destroy_delayed);
 }
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index 6a8fa085b74e..65802d93fdc1 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -334,7 +334,7 @@ i915_gem_userptr_init__mm_struct(struct drm_i915_gem_object *obj)
 		mm->i915 = to_i915(obj->base.dev);
 
 		mm->mm = current->mm;
-		atomic_inc(&current->mm->mm_count);
+		mmgrab(current->mm);
 
 		mm->mn = NULL;
 
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c
index f46033984d07..3b19c16a9e45 100644
--- a/drivers/infiniband/hw/hfi1/file_ops.c
+++ b/drivers/infiniband/hw/hfi1/file_ops.c
@@ -185,7 +185,7 @@ static int hfi1_file_open(struct inode *inode, struct file *fp)
 	if (fd) {
 		fd->rec_cpu_num = -1; /* no cpu affinity by default */
 		fd->mm = current->mm;
-		atomic_inc(&fd->mm->mm_count);
+		mmgrab(fd->mm);
 		fp->private_data = fd;
 	} else {
 		fp->private_data = NULL;
diff --git a/fs/proc/base.c b/fs/proc/base.c
index b8f06273353e..5d51a188871b 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -766,7 +766,7 @@ struct mm_struct *proc_mem_open(struct inode *inode, unsigned int mode)
 
 		if (!IS_ERR_OR_NULL(mm)) {
 			/* ensure this mm_struct can't be freed */
-			atomic_inc(&mm->mm_count);
+			mmgrab(mm);
 			/* but do not pin its memory */
 			mmput(mm);
 		}
@@ -1064,7 +1064,7 @@ static int __set_oom_adj(struct file *file, int oom_adj, bool legacy)
 		if (p) {
 			if (atomic_read(&p->mm->mm_users) > 1) {
 				mm = p->mm;
-				atomic_inc(&mm->mm_count);
+				mmgrab(mm);
 			}
 			task_unlock(p);
 		}
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index e6e0a619cb3a..3c421d06a18e 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -1847,7 +1847,7 @@ static struct file *userfaultfd_file_create(int flags)
 	ctx->released = false;
 	ctx->mm = current->mm;
 	/* prevent the mm struct to be freed */
-	atomic_inc(&ctx->mm->mm_count);
+	mmgrab(ctx->mm);
 
 	file = anon_inode_getfile("[userfaultfd]", &userfaultfd_fops, ctx,
 				  O_RDWR | (flags & UFFD_SHARED_FCNTL_FLAGS));
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 451e241f32c5..7cfa5546c840 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2904,6 +2904,28 @@ static inline unsigned long sigsp(unsigned long sp, struct ksignal *ksig)
  */
 extern struct mm_struct * mm_alloc(void);
 
+/**
+ * mmgrab() - Pin a &struct mm_struct.
+ * @mm: The &struct mm_struct to pin.
+ *
+ * Make sure that @mm will not get freed even after the owning task
+ * exits. This doesn't guarantee that the associated address space
+ * will still exist later on and mmget_not_zero() has to be used before
+ * accessing it.
+ *
+ * This is a preferred way to to pin @mm for a longer/unbounded amount
+ * of time.
+ *
+ * Use mmdrop() to release the reference acquired by mmgrab().
+ *
+ * See also <Documentation/vm/active_mm.txt> for an in-depth explanation
+ * of &mm_struct.mm_count vs &mm_struct.mm_users.
+ */
+static inline void mmgrab(struct mm_struct *mm)
+{
+	atomic_inc(&mm->mm_count);
+}
+
 /* mmdrop drops the mm and the page tables */
 extern void __mmdrop(struct mm_struct *);
 static inline void mmdrop(struct mm_struct *mm)
diff --git a/kernel/exit.c b/kernel/exit.c
index 90b09ca35c84..8a768a3672a5 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -539,7 +539,7 @@ static void exit_mm(void)
 		__set_current_state(TASK_RUNNING);
 		down_read(&mm->mmap_sem);
 	}
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	BUG_ON(mm != current->active_mm);
 	/* more a memory barrier than a real lock */
 	task_lock(current);
diff --git a/kernel/futex.c b/kernel/futex.c
index cdf365036141..b687cb22301c 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -338,7 +338,7 @@ static inline bool should_fail_futex(bool fshared)
 
 static inline void futex_get_mm(union futex_key *key)
 {
-	atomic_inc(&key->private.mm->mm_count);
+	mmgrab(key->private.mm);
 	/*
 	 * Ensure futex_get_mm() implies a full barrier such that
 	 * get_futex_key() implies a full barrier. This is relied upon
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e1ae6ac15eac..6ea1925ac5c0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2847,7 +2847,7 @@ context_switch(struct rq *rq, struct task_struct *prev,
 
 	if (!mm) {
 		next->active_mm = oldmm;
-		atomic_inc(&oldmm->mm_count);
+		mmgrab(oldmm);
 		enter_lazy_tlb(oldmm, next);
 	} else
 		switch_mm_irqs_off(oldmm, mm, next);
@@ -6098,7 +6098,7 @@ void __init sched_init(void)
 	/*
 	 * The boot idle thread does lazy MMU switching as well:
 	 */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	enter_lazy_tlb(&init_mm, current);
 
 	/*
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 77ae3239c3de..34bce5c308e3 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -420,7 +420,7 @@ int __khugepaged_enter(struct mm_struct *mm)
 	list_add_tail(&mm_slot->mm_node, &khugepaged_scan.mm_head);
 	spin_unlock(&khugepaged_mm_lock);
 
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	if (wakeup)
 		wake_up_interruptible(&khugepaged_wait);
 
diff --git a/mm/ksm.c b/mm/ksm.c
index cf211c01ceac..520e4c37fec7 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1854,7 +1854,7 @@ int __ksm_enter(struct mm_struct *mm)
 	spin_unlock(&ksm_mmlist_lock);
 
 	set_bit(MMF_VM_MERGEABLE, &mm->flags);
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 
 	if (needs_wakeup)
 		wake_up_interruptible(&ksm_thread_wait);
diff --git a/mm/mmu_context.c b/mm/mmu_context.c
index 6f4d27c5bb32..daf67bb02b4a 100644
--- a/mm/mmu_context.c
+++ b/mm/mmu_context.c
@@ -25,7 +25,7 @@ void use_mm(struct mm_struct *mm)
 	task_lock(tsk);
 	active_mm = tsk->active_mm;
 	if (active_mm != mm) {
-		atomic_inc(&mm->mm_count);
+		mmgrab(mm);
 		tsk->active_mm = mm;
 	}
 	tsk->mm = mm;
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index f4259e496f83..32bc9f2ff7eb 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -275,7 +275,7 @@ static int do_mmu_notifier_register(struct mmu_notifier *mn,
 		mm->mmu_notifier_mm = mmu_notifier_mm;
 		mmu_notifier_mm = NULL;
 	}
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 
 	/*
 	 * Serialize the update against mmu_notifier_unregister. A
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 578321f1c070..51c091849dcb 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -653,7 +653,7 @@ static void mark_oom_victim(struct task_struct *tsk)
 
 	/* oom_mm is bound to the signal struct life time. */
 	if (!cmpxchg(&tsk->signal->oom_mm, NULL, mm))
-		atomic_inc(&tsk->signal->oom_mm->mm_count);
+		mmgrab(tsk->signal->oom_mm);
 
 	/*
 	 * Make sure that the task is woken up from uninterruptible sleep
@@ -870,7 +870,7 @@ static void oom_kill_process(struct oom_control *oc, const char *message)
 
 	/* Get a reference to safely compare mm after task_unlock(victim) */
 	mm = victim->mm;
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	/*
 	 * We should send SIGKILL before setting TIF_MEMDIE in order to prevent
 	 * the OOM victim from depleting the memory reserves from the user
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 5b0dd4a9b2cb..35f71409d9ee 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -611,7 +611,7 @@ static struct kvm *kvm_create_vm(unsigned long type)
 		return ERR_PTR(-ENOMEM);
 
 	spin_lock_init(&kvm->mmu_lock);
-	atomic_inc(&current->mm->mm_count);
+	mmgrab(current->mm);
 	kvm->mm = current->mm;
 	kvm_eventfd_init(kvm);
 	mutex_init(&kvm->lock);
-- 
cgit 


From 4eb5aaa3af8a54e5e9bac90e2b42bbab1f1ee5a3 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 8 Feb 2017 18:51:29 +0100
Subject: sched/headers: Prepare for new header dependencies before moving code
 to <linux/sched/autogroup.h>

We are going to split <linux/sched/autogroup.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/autogroup.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 fs/proc/base.c                  | 1 +
 include/linux/sched/autogroup.h | 6 ++++++
 kernel/exit.c                   | 1 +
 kernel/fork.c                   | 1 +
 kernel/sched/autogroup.h        | 1 +
 kernel/sys.c                    | 1 +
 6 files changed, 11 insertions(+)
 create mode 100644 include/linux/sched/autogroup.h

(limited to 'kernel/exit.c')

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 1e1e182d571b..27af4ea315a3 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -85,6 +85,7 @@
 #include <linux/user_namespace.h>
 #include <linux/fs_struct.h>
 #include <linux/slab.h>
+#include <linux/sched/autogroup.h>
 #include <linux/flex_array.h>
 #include <linux/posix-timers.h>
 #ifdef CONFIG_HARDWALL
diff --git a/include/linux/sched/autogroup.h b/include/linux/sched/autogroup.h
new file mode 100644
index 000000000000..d745f22e57dc
--- /dev/null
+++ b/include/linux/sched/autogroup.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_AUTOGROUP_H
+#define _LINUX_SCHED_AUTOGROUP_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_AUTOGROUP_H */
diff --git a/kernel/exit.c b/kernel/exit.c
index 8a768a3672a5..9c0b92833fbb 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -6,6 +6,7 @@
 
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include <linux/sched/autogroup.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index d043fedc03c8..234f4bfb8efd 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -12,6 +12,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/sched/autogroup.h>
 #include <linux/init.h>
 #include <linux/unistd.h>
 #include <linux/module.h>
diff --git a/kernel/sched/autogroup.h b/kernel/sched/autogroup.h
index 890c95f2587a..ce40c810cd5c 100644
--- a/kernel/sched/autogroup.h
+++ b/kernel/sched/autogroup.h
@@ -2,6 +2,7 @@
 
 #include <linux/kref.h>
 #include <linux/rwsem.h>
+#include <linux/sched/autogroup.h>
 
 struct autogroup {
 	/*
diff --git a/kernel/sys.c b/kernel/sys.c
index 28b8a4c1bc7e..cfe82ae62423 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -49,6 +49,7 @@
 #include <linux/binfmts.h>
 
 #include <linux/sched.h>
+#include <linux/sched/autogroup.h>
 #include <linux/sched/loadavg.h>
 #include <linux/rcupdate.h>
 #include <linux/uidgid.h>
-- 
cgit 


From 6e84f31522f931027bf695752087ece278c10d3f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 8 Feb 2017 18:51:29 +0100
Subject: sched/headers: Prepare for new header dependencies before moving code
 to <linux/sched/mm.h>

We are going to split <linux/sched/mm.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/mm.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

The APIs that are going to be moved first are:

   mm_alloc()
   __mmdrop()
   mmdrop()
   mmdrop_async_fn()
   mmdrop_async()
   mmget_not_zero()
   mmput()
   mmput_async()
   get_task_mm()
   mm_access()
   mm_release()

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/arc/include/asm/mmu_context.h          | 1 +
 arch/arc/kernel/troubleshoot.c              | 2 ++
 arch/arm/mach-rpc/ecard.c                   | 1 +
 arch/frv/mm/mmu-context.c                   | 1 +
 arch/m68k/sun3/mmu_emu.c                    | 1 +
 arch/powerpc/platforms/cell/spufs/context.c | 2 ++
 drivers/android/binder.c                    | 1 +
 drivers/gpu/drm/amd/amdkfd/kfd_process.c    | 1 +
 drivers/gpu/drm/etnaviv/etnaviv_gem.c       | 1 +
 drivers/gpu/drm/i915/i915_gem_userptr.c     | 1 +
 drivers/infiniband/core/umem.c              | 1 +
 drivers/infiniband/core/umem_odp.c          | 1 +
 drivers/infiniband/hw/hfi1/file_ops.c       | 1 +
 drivers/infiniband/hw/mlx4/main.c           | 2 ++
 drivers/infiniband/hw/mlx5/main.c           | 1 +
 drivers/infiniband/hw/usnic/usnic_uiom.c    | 1 +
 drivers/iommu/amd_iommu_v2.c                | 1 +
 drivers/iommu/intel-svm.c                   | 1 +
 drivers/lguest/lguest_user.c                | 1 +
 drivers/misc/cxl/fault.c                    | 1 +
 drivers/misc/mic/scif/scif_rma.c            | 2 ++
 drivers/oprofile/buffer_sync.c              | 1 +
 drivers/vfio/vfio_iommu_spapr_tce.c         | 2 ++
 drivers/vfio/vfio_iommu_type1.c             | 1 +
 drivers/vhost/vhost.c                       | 1 +
 drivers/xen/gntdev.c                        | 1 +
 fs/exec.c                                   | 1 +
 fs/proc/array.c                             | 1 +
 fs/proc/base.c                              | 1 +
 fs/proc/task_mmu.c                          | 1 +
 fs/proc/task_nommu.c                        | 2 ++
 fs/userfaultfd.c                            | 1 +
 include/linux/sched/mm.h                    | 6 ++++++
 kernel/cgroup/cpuset.c                      | 1 +
 kernel/events/core.c                        | 1 +
 kernel/events/uprobes.c                     | 1 +
 kernel/exit.c                               | 1 +
 kernel/fork.c                               | 1 +
 kernel/futex.c                              | 1 +
 kernel/ptrace.c                             | 1 +
 kernel/sched/sched.h                        | 1 +
 kernel/sys.c                                | 1 +
 kernel/trace/trace_output.c                 | 1 +
 kernel/tsacct.c                             | 1 +
 mm/khugepaged.c                             | 1 +
 mm/ksm.c                                    | 1 +
 mm/memcontrol.c                             | 1 +
 mm/memory.c                                 | 1 +
 mm/mempolicy.c                              | 1 +
 mm/migrate.c                                | 1 +
 mm/mmu_context.c                            | 1 +
 mm/mmu_notifier.c                           | 1 +
 mm/nommu.c                                  | 1 +
 mm/oom_kill.c                               | 1 +
 mm/process_vm_access.c                      | 1 +
 mm/rmap.c                                   | 1 +
 mm/swapfile.c                               | 1 +
 mm/util.c                                   | 1 +
 virt/kvm/async_pf.c                         | 1 +
 virt/kvm/kvm_main.c                         | 1 +
 60 files changed, 71 insertions(+)
 create mode 100644 include/linux/sched/mm.h

(limited to 'kernel/exit.c')

diff --git a/arch/arc/include/asm/mmu_context.h b/arch/arc/include/asm/mmu_context.h
index b0b87f2447f5..64b5ebae1ae8 100644
--- a/arch/arc/include/asm/mmu_context.h
+++ b/arch/arc/include/asm/mmu_context.h
@@ -20,6 +20,7 @@
 
 #include <asm/arcregs.h>
 #include <asm/tlb.h>
+#include <linux/sched/mm.h>
 
 #include <asm-generic/mm_hooks.h>
 
diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index 82f9bc819f4a..0c48907f56a9 100644
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -13,6 +13,8 @@
 #include <linux/fs_struct.h>
 #include <linux/proc_fs.h>
 #include <linux/file.h>
+#include <linux/sched/mm.h>
+
 #include <asm/arcregs.h>
 #include <asm/irqflags.h>
 
diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c
index dc67a7fb3831..6b279d037774 100644
--- a/arch/arm/mach-rpc/ecard.c
+++ b/arch/arm/mach-rpc/ecard.c
@@ -31,6 +31,7 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/interrupt.h>
 #include <linux/completion.h>
 #include <linux/reboot.h>
diff --git a/arch/frv/mm/mmu-context.c b/arch/frv/mm/mmu-context.c
index 3473bde77f56..4031289bf2ec 100644
--- a/arch/frv/mm/mmu-context.c
+++ b/arch/frv/mm/mmu-context.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/mm.h>
 #include <asm/tlbflush.h>
 
diff --git a/arch/m68k/sun3/mmu_emu.c b/arch/m68k/sun3/mmu_emu.c
index e9d7fbe4d5ae..7fdc61525e0b 100644
--- a/arch/m68k/sun3/mmu_emu.c
+++ b/arch/m68k/sun3/mmu_emu.c
@@ -15,6 +15,7 @@
 #include <linux/bootmem.h>
 #include <linux/bitops.h>
 #include <linux/module.h>
+#include <linux/sched/mm.h>
 
 #include <asm/setup.h>
 #include <asm/traps.h>
diff --git a/arch/powerpc/platforms/cell/spufs/context.c b/arch/powerpc/platforms/cell/spufs/context.c
index 3b4152faeb1f..b500b17254a0 100644
--- a/arch/powerpc/platforms/cell/spufs/context.c
+++ b/arch/powerpc/platforms/cell/spufs/context.c
@@ -25,6 +25,8 @@
 #include <linux/slab.h>
 #include <linux/atomic.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
+
 #include <asm/spu.h>
 #include <asm/spu_csa.h>
 #include "spufs.h"
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 2bbcdc6fdfee..e33e7fbe870b 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -32,6 +32,7 @@
 #include <linux/debugfs.h>
 #include <linux/rbtree.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>
 #include <linux/vmalloc.h>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index ca5f2aa7232d..84d1ffd1eef9 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -23,6 +23,7 @@
 #include <linux/mutex.h>
 #include <linux/log2.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/slab.h>
 #include <linux/amd-iommu.h>
 #include <linux/notifier.h>
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index e78f1406885d..ae2882b64b82 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -16,6 +16,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/shmem_fs.h>
+#include <linux/sched/mm.h>
 
 #include "etnaviv_drv.h"
 #include "etnaviv_gem.h"
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index 0115989e324a..22b46398831e 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -31,6 +31,7 @@
 #include <linux/mmu_notifier.h>
 #include <linux/mempolicy.h>
 #include <linux/swap.h>
+#include <linux/sched/mm.h>
 
 struct i915_mm_struct {
 	struct mm_struct *mm;
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index 446b56a5260b..d525b1a2986a 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -35,6 +35,7 @@
 #include <linux/mm.h>
 #include <linux/dma-mapping.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/export.h>
 #include <linux/hugetlb.h>
 #include <linux/slab.h>
diff --git a/drivers/infiniband/core/umem_odp.c b/drivers/infiniband/core/umem_odp.c
index f2fc0431512d..7279f259494f 100644
--- a/drivers/infiniband/core/umem_odp.c
+++ b/drivers/infiniband/core/umem_odp.c
@@ -32,6 +32,7 @@
 
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/pid.h>
 #include <linux/slab.h>
 #include <linux/export.h>
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c
index 3b19c16a9e45..f78c739b330a 100644
--- a/drivers/infiniband/hw/hfi1/file_ops.c
+++ b/drivers/infiniband/hw/hfi1/file_ops.c
@@ -48,6 +48,7 @@
 #include <linux/cdev.h>
 #include <linux/vmalloc.h>
 #include <linux/io.h>
+#include <linux/sched/mm.h>
 
 #include <rdma/ib.h>
 
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 88608906ce25..56da8f0d71bb 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -39,6 +39,8 @@
 #include <linux/inetdevice.h>
 #include <linux/rtnetlink.h>
 #include <linux/if_vlan.h>
+#include <linux/sched/mm.h>
+
 #include <net/ipv6.h>
 #include <net/addrconf.h>
 #include <net/devlink.h>
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 5b3355268725..4b1ec3ff152a 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -41,6 +41,7 @@
 #include <asm/pat.h>
 #endif
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/delay.h>
 #include <rdma/ib_user_verbs.h>
 #include <rdma/ib_addr.h>
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c
index 1ccee6ea5bc3..ba868be5af2e 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.c
@@ -35,6 +35,7 @@
 #include <linux/mm.h>
 #include <linux/dma-mapping.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/iommu.h>
 #include <linux/workqueue.h>
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index f8ed8c95b685..063343909b0d 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -22,6 +22,7 @@
 #include <linux/profile.h>
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/iommu.h>
 #include <linux/wait.h>
 #include <linux/pci.h>
diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
index 51f2b228723f..23c427602c55 100644
--- a/drivers/iommu/intel-svm.c
+++ b/drivers/iommu/intel-svm.c
@@ -16,6 +16,7 @@
 #include <linux/intel-iommu.h>
 #include <linux/mmu_notifier.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/slab.h>
 #include <linux/intel-svm.h>
 #include <linux/rculist.h>
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index 30c60687d277..1a6787bc9386 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -8,6 +8,7 @@
 #include <linux/miscdevice.h>
 #include <linux/fs.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/file.h>
 #include <linux/slab.h>
 #include <linux/export.h>
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index 377e650a2a1d..e33011e3e7e2 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -9,6 +9,7 @@
 
 #include <linux/workqueue.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/pid.h>
 #include <linux/mm.h>
 #include <linux/moduleparam.h>
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c
index f806a4471eb9..d0e9c60f944e 100644
--- a/drivers/misc/mic/scif/scif_rma.c
+++ b/drivers/misc/mic/scif/scif_rma.c
@@ -17,6 +17,8 @@
  */
 #include <linux/dma_remapping.h>
 #include <linux/pagemap.h>
+#include <linux/sched/mm.h>
+
 #include "scif_main.h"
 #include "scif_map.h"
 
diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index 642478d35e99..eb0c35994b54 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -31,6 +31,7 @@
 #include <linux/fs.h>
 #include <linux/oprofile.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/gfp.h>
 
 #include "oprofile_stats.h"
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c
index 59b3f62a2d64..185d50ee1b12 100644
--- a/drivers/vfio/vfio_iommu_spapr_tce.c
+++ b/drivers/vfio/vfio_iommu_spapr_tce.c
@@ -20,6 +20,8 @@
 #include <linux/err.h>
 #include <linux/vfio.h>
 #include <linux/vmalloc.h>
+#include <linux/sched/mm.h>
+
 #include <asm/iommu.h>
 #include <asm/tce.h>
 #include <asm/mmu_context.h>
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index bd6f293c4ebd..7e94c7fc90ae 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -32,6 +32,7 @@
 #include <linux/mm.h>
 #include <linux/rbtree.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/vfio.h>
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 4269e621e254..4a00140a7624 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -27,6 +27,7 @@
 #include <linux/cgroup.h>
 #include <linux/module.h>
 #include <linux/sort.h>
+#include <linux/sched/mm.h>
 #include <linux/interval_tree_generic.h>
 
 #include "vhost.h"
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 2ef2b61b69df..c77a0751a311 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -32,6 +32,7 @@
 #include <linux/types.h>
 #include <linux/uaccess.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/highmem.h>
diff --git a/fs/exec.c b/fs/exec.c
index e595e1529581..8929da96cca1 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -32,6 +32,7 @@
 #include <linux/swap.h>
 #include <linux/string.h>
 #include <linux/init.h>
+#include <linux/sched/mm.h>
 #include <linux/pagemap.h>
 #include <linux/perf_event.h>
 #include <linux/highmem.h>
diff --git a/fs/proc/array.c b/fs/proc/array.c
index fe12b519d09b..61bea3a4ecc5 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -60,6 +60,7 @@
 #include <linux/tty.h>
 #include <linux/string.h>
 #include <linux/mman.h>
+#include <linux/sched/mm.h>
 #include <linux/proc_fs.h>
 #include <linux/ioport.h>
 #include <linux/uaccess.h>
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 27af4ea315a3..9efe12376af1 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -86,6 +86,7 @@
 #include <linux/fs_struct.h>
 #include <linux/slab.h>
 #include <linux/sched/autogroup.h>
+#include <linux/sched/mm.h>
 #include <linux/flex_array.h>
 #include <linux/posix-timers.h>
 #ifdef CONFIG_HARDWALL
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index ee3efb229ef6..f08bd31c1081 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -11,6 +11,7 @@
 #include <linux/mempolicy.h>
 #include <linux/rmap.h>
 #include <linux/swap.h>
+#include <linux/sched/mm.h>
 #include <linux/swapops.h>
 #include <linux/mmu_notifier.h>
 #include <linux/page_idle.h>
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 1ef97cfcf422..23266694db11 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -7,6 +7,8 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/seq_file.h>
+#include <linux/sched/mm.h>
+
 #include "internal.h"
 
 /*
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 3c421d06a18e..18d12bfff770 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -15,6 +15,7 @@
 #include <linux/list.h>
 #include <linux/hashtable.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/mm.h>
 #include <linux/poll.h>
 #include <linux/slab.h>
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
new file mode 100644
index 000000000000..a7adba1cd0a9
--- /dev/null
+++ b/include/linux/sched/mm.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_MM_H
+#define _LINUX_SCHED_MM_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_MM_H */
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index b3088886cd37..a5c46db2855c 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -44,6 +44,7 @@
 #include <linux/proc_fs.h>
 #include <linux/rcupdate.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/seq_file.h>
 #include <linux/security.h>
 #include <linux/slab.h>
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 42fe16a84f97..6f41548f2e32 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -47,6 +47,7 @@
 #include <linux/namei.h>
 #include <linux/parser.h>
 #include <linux/sched/clock.h>
+#include <linux/sched/mm.h>
 
 #include "internal.h"
 
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index d630f8ac4d2f..62f2dbd13efc 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -27,6 +27,7 @@
 #include <linux/pagemap.h>	/* read_mapping_page */
 #include <linux/slab.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/export.h>
 #include <linux/rmap.h>		/* anon_vma_prepare */
 #include <linux/mmu_notifier.h>	/* set_pte_at_notify */
diff --git a/kernel/exit.c b/kernel/exit.c
index 9c0b92833fbb..48649ccbb649 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -7,6 +7,7 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/sched/autogroup.h>
+#include <linux/sched/mm.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 234f4bfb8efd..1875468e2a81 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -13,6 +13,7 @@
 
 #include <linux/slab.h>
 #include <linux/sched/autogroup.h>
+#include <linux/sched/mm.h>
 #include <linux/init.h>
 #include <linux/unistd.h>
 #include <linux/module.h>
diff --git a/kernel/futex.c b/kernel/futex.c
index 8ddcf9ea953c..229a744b1781 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -62,6 +62,7 @@
 #include <linux/ptrace.h>
 #include <linux/sched/rt.h>
 #include <linux/sched/wake_q.h>
+#include <linux/sched/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/freezer.h>
 #include <linux/bootmem.h>
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 49ba7c1ade9d..6fe5a2897912 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -10,6 +10,7 @@
 #include <linux/capability.h>
 #include <linux/export.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 4d386461f13a..e2307a6c29f1 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -5,6 +5,7 @@
 #include <linux/sched/rt.h>
 #include <linux/sched/clock.h>
 #include <linux/sched/wake_q.h>
+#include <linux/sched/mm.h>
 #include <linux/u64_stats_sync.h>
 #include <linux/sched/deadline.h>
 #include <linux/kernel_stat.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index cfe82ae62423..dc71ec1e1967 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -51,6 +51,7 @@
 #include <linux/sched.h>
 #include <linux/sched/autogroup.h>
 #include <linux/sched/loadavg.h>
+#include <linux/sched/mm.h>
 #include <linux/rcupdate.h>
 #include <linux/uidgid.h>
 #include <linux/cred.h>
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 107afca97649..02a4aeb22c47 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -9,6 +9,7 @@
 #include <linux/mutex.h>
 #include <linux/ftrace.h>
 #include <linux/sched/clock.h>
+#include <linux/sched/mm.h>
 
 #include "trace_output.h"
 
diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 5c21f0535056..571a2d3821d8 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -18,6 +18,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/tsacct_kern.h>
 #include <linux/acct.h>
 #include <linux/jiffies.h>
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 34bce5c308e3..212a2afe8830 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -2,6 +2,7 @@
 
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/mmu_notifier.h>
 #include <linux/rmap.h>
 #include <linux/swap.h>
diff --git a/mm/ksm.c b/mm/ksm.c
index 520e4c37fec7..5632c9d02457 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -19,6 +19,7 @@
 #include <linux/fs.h>
 #include <linux/mman.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/rwsem.h>
 #include <linux/pagemap.h>
 #include <linux/rmap.h>
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 45867e439d31..c52ec893e241 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -35,6 +35,7 @@
 #include <linux/memcontrol.h>
 #include <linux/cgroup.h>
 #include <linux/mm.h>
+#include <linux/sched/mm.h>
 #include <linux/shmem_fs.h>
 #include <linux/hugetlb.h>
 #include <linux/pagemap.h>
diff --git a/mm/memory.c b/mm/memory.c
index 14fc0b40f0bb..b0495ec74d29 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -40,6 +40,7 @@
 
 #include <linux/kernel_stat.h>
 #include <linux/mm.h>
+#include <linux/sched/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/mman.h>
 #include <linux/swap.h>
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 1e7873e40c9a..90892416ed75 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -73,6 +73,7 @@
 #include <linux/hugetlb.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/nodemask.h>
 #include <linux/cpuset.h>
 #include <linux/slab.h>
diff --git a/mm/migrate.c b/mm/migrate.c
index 2c63ac06791b..9a0897a14d37 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -40,6 +40,7 @@
 #include <linux/mmu_notifier.h>
 #include <linux/page_idle.h>
 #include <linux/page_owner.h>
+#include <linux/sched/mm.h>
 
 #include <asm/tlbflush.h>
 
diff --git a/mm/mmu_context.c b/mm/mmu_context.c
index daf67bb02b4a..8888b124a386 100644
--- a/mm/mmu_context.c
+++ b/mm/mmu_context.c
@@ -5,6 +5,7 @@
 
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/mmu_context.h>
 #include <linux/export.h>
 
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index 32bc9f2ff7eb..a7652acd2ab9 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -17,6 +17,7 @@
 #include <linux/srcu.h>
 #include <linux/rcupdate.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/slab.h>
 
 /* global SRCU for all MMs */
diff --git a/mm/nommu.c b/mm/nommu.c
index aae06e854552..79abed514a4b 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -17,6 +17,7 @@
 
 #include <linux/export.h>
 #include <linux/mm.h>
+#include <linux/sched/mm.h>
 #include <linux/vmacache.h>
 #include <linux/mman.h>
 #include <linux/swap.h>
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 51c091849dcb..d28936618698 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -22,6 +22,7 @@
 #include <linux/err.h>
 #include <linux/gfp.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/swap.h>
 #include <linux/timex.h>
 #include <linux/jiffies.h>
diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 84d0c7eada2b..8973cd231ece 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -12,6 +12,7 @@
 #include <linux/mm.h>
 #include <linux/uio.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/highmem.h>
 #include <linux/ptrace.h>
 #include <linux/slab.h>
diff --git a/mm/rmap.c b/mm/rmap.c
index 8774791e2809..0367a0506667 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -46,6 +46,7 @@
  */
 
 #include <linux/mm.h>
+#include <linux/sched/mm.h>
 #include <linux/pagemap.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
diff --git a/mm/swapfile.c b/mm/swapfile.c
index fadc6a1c0da0..ff2bf3f61b14 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/mm.h>
+#include <linux/sched/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/mman.h>
 #include <linux/slab.h>
diff --git a/mm/util.c b/mm/util.c
index b8f538863b5a..14f4e13323e2 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -5,6 +5,7 @@
 #include <linux/export.h>
 #include <linux/err.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/security.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 2366177172f6..bb298a200cd3 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/mmu_context.h>
+#include <linux/sched/mm.h>
 
 #include "async_pf.h"
 #include <trace/events/kvm.h>
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 35f71409d9ee..dd5de09bf362 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -33,6 +33,7 @@
 #include <linux/syscore_ops.h>
 #include <linux/cpu.h>
 #include <linux/sched.h>
+#include <linux/sched/mm.h>
 #include <linux/cpumask.h>
 #include <linux/smp.h>
 #include <linux/anon_inodes.h>
-- 
cgit 


From 03441a3482a31462c93509939a388877e3cd9261 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 8 Feb 2017 18:51:35 +0100
Subject: sched/headers: Prepare for new header dependencies before moving code
 to <linux/sched/stat.h>

We are going to split <linux/sched/stat.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/stat.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/powerpc/kvm/book3s_hv.c     | 1 +
 arch/s390/appldata/appldata_os.c | 1 +
 crypto/mcryptd.c                 | 1 +
 drivers/cpuidle/governors/menu.c | 1 +
 fs/proc/loadavg.c                | 1 +
 fs/proc/root.c                   | 1 +
 fs/proc/stat.c                   | 1 +
 include/linux/sched/stat.h       | 6 ++++++
 kernel/debug/kdb/kdb_main.c      | 1 +
 kernel/exit.c                    | 1 +
 kernel/fork.c                    | 1 +
 kernel/sched/sched.h             | 1 +
 kernel/sys.c                     | 1 +
 kernel/time/tick-sched.c         | 1 +
 virt/kvm/kvm_main.c              | 1 +
 15 files changed, 20 insertions(+)
 create mode 100644 include/linux/sched/stat.h

(limited to 'kernel/exit.c')

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index fc56a9ce785d..1ec86d9e2a82 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -23,6 +23,7 @@
 #include <linux/slab.h>
 #include <linux/preempt.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/stat.h>
 #include <linux/delay.h>
 #include <linux/export.h>
 #include <linux/fs.h>
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index 079446619f89..45b3178200ab 100644
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -18,6 +18,7 @@
 #include <linux/netdevice.h>
 #include <linux/sched.h>
 #include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
 #include <asm/appldata.h>
 #include <asm/smp.h>
 
diff --git a/crypto/mcryptd.c b/crypto/mcryptd.c
index c207458d6299..4e6472658852 100644
--- a/crypto/mcryptd.c
+++ b/crypto/mcryptd.c
@@ -24,6 +24,7 @@
 #include <linux/module.h>
 #include <linux/scatterlist.h>
 #include <linux/sched.h>
+#include <linux/sched/stat.h>
 #include <linux/slab.h>
 #include <linux/hardirq.h>
 
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index fe86060e48f7..6d8a4026a903 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -19,6 +19,7 @@
 #include <linux/tick.h>
 #include <linux/sched.h>
 #include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
 #include <linux/math64.h>
 #include <linux/cpu.h>
 
diff --git a/fs/proc/loadavg.c b/fs/proc/loadavg.c
index add5255ce7e0..983fce5c2418 100644
--- a/fs/proc/loadavg.c
+++ b/fs/proc/loadavg.c
@@ -4,6 +4,7 @@
 #include <linux/proc_fs.h>
 #include <linux/sched.h>
 #include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
 #include <linux/seq_file.h>
 #include <linux/seqlock.h>
 #include <linux/time.h>
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 5d5fed20bfff..a50ba388255f 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -14,6 +14,7 @@
 #include <linux/stat.h>
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/sched/stat.h>
 #include <linux/module.h>
 #include <linux/bitops.h>
 #include <linux/user_namespace.h>
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index e47c3e8c4dfe..b95556e036bb 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -5,6 +5,7 @@
 #include <linux/kernel_stat.h>
 #include <linux/proc_fs.h>
 #include <linux/sched.h>
+#include <linux/sched/stat.h>
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/time.h>
diff --git a/include/linux/sched/stat.h b/include/linux/sched/stat.h
new file mode 100644
index 000000000000..30fe012aecb0
--- /dev/null
+++ b/include/linux/sched/stat.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_STAT_H
+#define _LINUX_SCHED_STAT_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_STAT_H */
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 308937c7a687..bf48a492b4be 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -19,6 +19,7 @@
 #include <linux/reboot.h>
 #include <linux/sched.h>
 #include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
 #include <linux/sysrq.h>
 #include <linux/smp.h>
 #include <linux/utsname.h>
diff --git a/kernel/exit.c b/kernel/exit.c
index 48649ccbb649..5bad7dce1b7b 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -8,6 +8,7 @@
 #include <linux/slab.h>
 #include <linux/sched/autogroup.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/stat.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 8fbe8bcd1e20..8632905f64c5 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -17,6 +17,7 @@
 #include <linux/sched/coredump.h>
 #include <linux/sched/user.h>
 #include <linux/sched/numa_balancing.h>
+#include <linux/sched/stat.h>
 #include <linux/rtmutex.h>
 #include <linux/init.h>
 #include <linux/unistd.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 04f376cf7ba9..6c8a1db44dde 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -9,6 +9,7 @@
 #include <linux/sched/numa_balancing.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/cpufreq.h>
+#include <linux/sched/stat.h>
 #include <linux/u64_stats_sync.h>
 #include <linux/sched/deadline.h>
 #include <linux/kernel_stat.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index e2d743fb7f55..8c0392c8be51 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -51,6 +51,7 @@
 #include <linux/sched.h>
 #include <linux/sched/autogroup.h>
 #include <linux/sched/loadavg.h>
+#include <linux/sched/stat.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/coredump.h>
 #include <linux/rcupdate.h>
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 5e9e123b4321..29d79b175141 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -21,6 +21,7 @@
 #include <linux/profile.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/clock.h>
+#include <linux/sched/stat.h>
 #include <linux/module.h>
 #include <linux/irq_work.h>
 #include <linux/posix-timers.h>
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index ae79f7679cc2..799499417f5b 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -34,6 +34,7 @@
 #include <linux/cpu.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/stat.h>
 #include <linux/cpumask.h>
 #include <linux/smp.h>
 #include <linux/anon_inodes.h>
-- 
cgit 


From 299300258d1bc4e997b7db340a2e06636757fe2e Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 8 Feb 2017 18:51:36 +0100
Subject: sched/headers: Prepare for new header dependencies before moving code
 to <linux/sched/task.h>

We are going to split <linux/sched/task.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/task.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/alpha/kernel/process.c              | 1 +
 arch/arc/kernel/process.c                | 2 ++
 arch/arm/kernel/process.c                | 1 +
 arch/arm/mm/init.c                       | 1 +
 arch/arm64/kernel/process.c              | 1 +
 arch/avr32/kernel/process.c              | 1 +
 arch/blackfin/kernel/process.c           | 1 +
 arch/blackfin/kernel/trace.c             | 1 +
 arch/c6x/kernel/process.c                | 1 +
 arch/cris/arch-v10/kernel/process.c      | 1 +
 arch/cris/arch-v32/kernel/process.c      | 1 +
 arch/cris/kernel/process.c               | 1 +
 arch/frv/kernel/process.c                | 1 +
 arch/frv/mm/mmu-context.c                | 1 +
 arch/h8300/kernel/process.c              | 1 +
 arch/hexagon/kernel/process.c            | 1 +
 arch/ia64/kernel/mca.c                   | 1 +
 arch/ia64/kernel/perfmon.c               | 1 +
 arch/ia64/kernel/process.c               | 1 +
 arch/ia64/kernel/ptrace.c                | 1 +
 arch/m32r/kernel/process.c               | 1 +
 arch/m32r/kernel/smpboot.c               | 1 +
 arch/m68k/kernel/process.c               | 1 +
 arch/metag/kernel/process.c              | 1 +
 arch/metag/kernel/traps.c                | 1 +
 arch/microblaze/kernel/process.c         | 1 +
 arch/mips/kernel/mips-mt-fpaff.c         | 1 +
 arch/mips/kernel/process.c               | 1 +
 arch/mn10300/kernel/process.c            | 1 +
 arch/mn10300/kernel/smp.c                | 1 +
 arch/nios2/kernel/process.c              | 1 +
 arch/openrisc/kernel/process.c           | 1 +
 arch/parisc/kernel/process.c             | 1 +
 arch/powerpc/kernel/process.c            | 1 +
 arch/s390/kernel/process.c               | 1 +
 arch/s390/kernel/setup.c                 | 1 +
 arch/score/kernel/process.c              | 1 +
 arch/sh/kernel/cpu/fpu.c                 | 1 +
 arch/sh/kernel/process_32.c              | 1 +
 arch/sh/kernel/process_64.c              | 1 +
 arch/sh/mm/asids-debugfs.c               | 1 +
 arch/sparc/kernel/process_32.c           | 1 +
 arch/sparc/kernel/process_64.c           | 1 +
 arch/tile/kernel/process.c               | 1 +
 arch/tile/kernel/smpboot.c               | 1 +
 arch/tile/kernel/unaligned.c             | 1 +
 arch/tile/mm/fault.c                     | 2 ++
 arch/um/kernel/exec.c                    | 1 +
 arch/um/kernel/process.c                 | 1 +
 arch/um/kernel/reboot.c                  | 1 +
 arch/unicore32/kernel/process.c          | 1 +
 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 1 +
 arch/x86/kernel/fpu/init.c               | 1 +
 arch/x86/kernel/process.c                | 1 +
 arch/x86/kernel/process_32.c             | 1 +
 arch/x86/kernel/process_64.c             | 1 +
 arch/x86/kernel/unwind_frame.c           | 1 +
 arch/xtensa/kernel/process.c             | 1 +
 drivers/misc/kgdbts.c                    | 2 ++
 drivers/tty/sysrq.c                      | 2 +-
 drivers/tty/tty_io.c                     | 1 +
 fs/exec.c                                | 1 +
 fs/fcntl.c                               | 1 +
 fs/fs_struct.c                           | 1 +
 fs/proc/array.c                          | 1 +
 fs/proc/kcore.c                          | 1 +
 include/linux/sched/task.h               | 6 ++++++
 init/main.c                              | 1 +
 kernel/cgroup/cgroup.c                   | 1 +
 kernel/cpu.c                             | 1 +
 kernel/exit.c                            | 1 +
 kernel/fork.c                            | 1 +
 kernel/kmod.c                            | 1 +
 kernel/kthread.c                         | 1 +
 kernel/locking/lockdep.c                 | 1 +
 kernel/pid.c                             | 1 +
 kernel/pid_namespace.c                   | 1 +
 kernel/power/process.c                   | 1 +
 kernel/ptrace.c                          | 1 +
 kernel/sched/sched.h                     | 1 +
 kernel/signal.c                          | 1 +
 kernel/smpboot.c                         | 1 +
 kernel/sys.c                             | 1 +
 kernel/trace/ftrace.c                    | 1 +
 kernel/tracepoint.c                      | 1 +
 lib/dma-debug.c                          | 1 +
 mm/kmemleak.c                            | 1 +
 mm/memory-failure.c                      | 1 +
 mm/memory.c                              | 1 +
 mm/oom_kill.c                            | 1 +
 mm/rmap.c                                | 1 +
 mm/swapfile.c                            | 1 +
 mm/usercopy.c                            | 2 ++
 security/keys/keyctl.c                   | 1 +
 security/selinux/hooks.c                 | 1 +
 95 files changed, 104 insertions(+), 1 deletion(-)
 create mode 100644 include/linux/sched/task.h

(limited to 'kernel/exit.c')

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 88f7a974d311..713b4fac998e 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index a41a79a4f4fe..d618d26721ab 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -11,6 +11,8 @@
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
+
 #include <linux/mm.h>
 #include <linux/fs.h>
 #include <linux/unistd.h>
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 03d46395d1ff..d4c7c9a1afa9 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -13,6 +13,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 2a9040dcf47e..1d8558ff9827 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -14,6 +14,7 @@
 #include <linux/bootmem.h>
 #include <linux/mman.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/export.h>
 #include <linux/nodemask.h>
 #include <linux/initrd.h>
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 40a16cdd9873..f9b8e74ff8f2 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -25,6 +25,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index dac022d88d9d..75b944a5107c 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -7,6 +7,7 @@
  */
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
 #include <linux/fs.h>
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index e95d094c20a6..1a1f444004b1 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -13,6 +13,7 @@
 #include <linux/slab.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/tick.h>
 #include <linux/fs.h>
 #include <linux/err.h>
diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index 23c05b8effb3..151f22196ab6 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -13,6 +13,7 @@
 #include <linux/oom.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/uaccess.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 0ee7686a78f3..6b61779d426a 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -17,6 +17,7 @@
 #include <linux/mqueue.h>
 #include <linux/syscalls.h>
 #include <linux/reboot.h>
+#include <linux/sched/task.h>
 
 #include <asm/syscalls.h>
 
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index 068a40374200..808c2186b704 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -12,6 +12,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/fs.h>
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index 613c2d71bf10..c852df262948 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -10,6 +10,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/fs.h>
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index 50a7dd451456..0bbd3a0c3d70 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -20,6 +20,7 @@
 #include <linux/spinlock.h>
 #include <linux/init_task.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/fs.h>
 #include <linux/user.h>
 #include <linux/elfcore.h>
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index cf4c34c09ab3..c96dbd4b8626 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -14,6 +14,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/frv/mm/mmu-context.c b/arch/frv/mm/mmu-context.c
index 4031289bf2ec..16946a58f64d 100644
--- a/arch/frv/mm/mmu-context.c
+++ b/arch/frv/mm/mmu-context.c
@@ -11,6 +11,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/task.h>
 #include <linux/mm.h>
 #include <asm/tlbflush.h>
 
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index d7cabf373fe3..54e4d6f01865 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index 3bdd9592d025..a2a822a875b6 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -20,6 +20,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/types.h>
 #include <linux/module.h>
 #include <linux/tick.h>
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index f9fe3ac64242..79c7c46d7dc1 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -74,6 +74,7 @@
 #include <linux/init.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/bootmem.h>
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 677a86826771..7e943d3c05ed 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -22,6 +22,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/interrupt.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 2204ae450d65..054facf22156 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -22,6 +22,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task.h>
 #include <linux/stddef.h>
 #include <linux/thread_info.h>
 #include <linux/unistd.h>
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 0b1153e610ea..04fe1436e1cc 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -11,6 +11,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index 1a227c1fdb1a..2a450382934c 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -23,6 +23,7 @@
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/module.h>
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
diff --git a/arch/m32r/kernel/smpboot.c b/arch/m32r/kernel/smpboot.c
index f98d2f6519d6..a7d04684d2c7 100644
--- a/arch/m32r/kernel/smpboot.c
+++ b/arch/m32r/kernel/smpboot.c
@@ -45,6 +45,7 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/err.h>
 #include <linux/irq.h>
 #include <linux/bootmem.h>
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index b4a4675f4119..5d335d178706 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 2e611bd37515..801e6f927e62 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -9,6 +9,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/unistd.h>
diff --git a/arch/metag/kernel/traps.c b/arch/metag/kernel/traps.c
index 5ce67f9124aa..23c5ac33a93f 100644
--- a/arch/metag/kernel/traps.c
+++ b/arch/metag/kernel/traps.c
@@ -11,6 +11,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/signal.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index 8c5fdb2e2850..a642fe5ac5ff 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -12,6 +12,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/pm.h>
 #include <linux/tick.h>
 #include <linux/bitops.h>
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index ffc6bd3464d9..8cab633e0e5a 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -9,6 +9,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/cred.h>
 #include <linux/security.h>
 #include <linux/types.h>
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 97574cdb532d..8bfb833b3158 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -12,6 +12,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/tick.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index a1e2f8301d94..8ca7a9de09a5 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -12,6 +12,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c
index e65b5cc2fa67..d924f7a79708 100644
--- a/arch/mn10300/kernel/smp.c
+++ b/arch/mn10300/kernel/smp.c
@@ -22,6 +22,7 @@
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/profile.h>
 #include <linux/smp.h>
 #include <linux/cpu.h>
diff --git a/arch/nios2/kernel/process.c b/arch/nios2/kernel/process.c
index 3ad87a6b119b..5ee1ddf6a924 100644
--- a/arch/nios2/kernel/process.c
+++ b/arch/nios2/kernel/process.c
@@ -15,6 +15,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/tick.h>
 #include <linux/uaccess.h>
 
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 899339dac938..0c5ad3bde0f5 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -23,6 +23,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mm.h>
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 8c283caf2b4d..e5f97239cc5e 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -44,6 +44,7 @@
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/slab.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 76f58b87dcb2..b99b12656f6f 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -17,6 +17,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index ed99ff911b67..250c41f05721 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -12,6 +12,7 @@
 #include <linux/cpu.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/elfcore.h>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index e4d811f17971..3de07004c02e 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -18,6 +18,7 @@
 #include <linux/errno.h>
 #include <linux/export.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/memblock.h>
 #include <linux/mm.h>
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index aae9480706c2..32924159d8c9 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -28,6 +28,7 @@
 #include <linux/elfcore.h>
 #include <linux/pm.h>
 #include <linux/rcupdate.h>
+#include <linux/sched/task.h>
 
 void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index 37e35330aae6..b76370a47bf9 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -1,4 +1,5 @@
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/slab.h>
 #include <asm/processor.h>
 #include <asm/fpu.h>
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 5098274e0f23..493c3eb86aa5 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/slab.h>
 #include <linux/elfcore.h>
 #include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index ced21a417d9d..056607185158 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/io.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <asm/syscalls.h>
 #include <linux/uaccess.h>
 #include <asm/pgtable.h>
diff --git a/arch/sh/mm/asids-debugfs.c b/arch/sh/mm/asids-debugfs.c
index 110bd35165bf..e5539e0f8e3b 100644
--- a/arch/sh/mm/asids-debugfs.c
+++ b/arch/sh/mm/asids-debugfs.c
@@ -21,6 +21,7 @@
 #include <linux/seq_file.h>
 #include <linux/spinlock.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 
 #include <asm/processor.h>
 #include <asm/mmu_context.h>
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 237a471c8ed5..ed87c45a785b 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 98f6ff6eaa55..4c82a73af893 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -15,6 +15,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index 557b4c8435d0..dbb4fa76d1dd 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -14,6 +14,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/preempt.h>
 #include <linux/module.h>
 #include <linux/fs.h>
diff --git a/arch/tile/kernel/smpboot.c b/arch/tile/kernel/smpboot.c
index 53ce940a5016..f3fdd0c39b12 100644
--- a/arch/tile/kernel/smpboot.c
+++ b/arch/tile/kernel/smpboot.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/kernel_stat.h>
 #include <linux/bootmem.h>
 #include <linux/notifier.h>
diff --git a/arch/tile/kernel/unaligned.c b/arch/tile/kernel/unaligned.c
index 142acae78316..8149c38f67b6 100644
--- a/arch/tile/kernel/unaligned.c
+++ b/arch/tile/kernel/unaligned.c
@@ -18,6 +18,7 @@
 #include <linux/ptrace.h>
 #include <linux/slab.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/thread_info.h>
 #include <linux/uaccess.h>
 #include <linux/mman.h>
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 005c91c2adca..f58fa06a2214 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -17,6 +17,8 @@
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/string.h>
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 770ec07b6a6a..2df4e5d11939 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -8,6 +8,7 @@
 #include <linux/fs.h>
 #include <linux/ptrace.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/slab.h>
 #include <asm/current.h>
 #include <asm/processor.h>
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index c6c45ea4021f..e76dc7c11251 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/seq_file.h>
 #include <linux/tick.h>
 #include <linux/threads.h>
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index 79218106a033..0bc921cee0b1 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -4,6 +4,7 @@
  */
 
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/oom.h>
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index c1a0eec88f1f..d58f1600b477 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index d48af18e7baf..0bbe0f3a039f 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -26,6 +26,7 @@
 #include <linux/kernfs.h>
 #include <linux/seq_file.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/slab.h>
 #include <linux/cpu.h>
 #include <linux/task_work.h>
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index 19bdd1bf8160..c2f8dde3255c 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -7,6 +7,7 @@
 #include <asm/cmdline.h>
 
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/init.h>
 
 /*
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 505be5589e52..441f00e7be8f 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -9,6 +9,7 @@
 #include <linux/sched.h>
 #include <linux/sched/idle.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/init.h>
 #include <linux/export.h>
 #include <linux/pm.h>
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index a0ac3e81518a..d79ffa47aab8 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -12,6 +12,7 @@
 #include <linux/cpu.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index a61e141b6891..124f5652ae3c 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -17,6 +17,7 @@
 #include <linux/cpu.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/arch/x86/kernel/unwind_frame.c b/arch/x86/kernel/unwind_frame.c
index 23d15565d02a..7c0abdc9a732 100644
--- a/arch/x86/kernel/unwind_frame.c
+++ b/arch/x86/kernel/unwind_frame.c
@@ -1,4 +1,5 @@
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <asm/ptrace.h>
 #include <asm/bitops.h>
 #include <asm/stacktrace.h>
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index afaa3588d869..af33f9d4c624 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -18,6 +18,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c
index 99635dd9dbac..fc7efedbc4be 100644
--- a/drivers/misc/kgdbts.c
+++ b/drivers/misc/kgdbts.c
@@ -103,6 +103,8 @@
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/module.h>
+#include <linux/sched/task.h>
+
 #include <asm/sections.h>
 
 #define v1printk(a...) do { \
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index e5f0c7d0fe8d..c6fc7141d7b2 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -17,7 +17,7 @@
 #include <linux/sched/signal.h>
 #include <linux/sched/rt.h>
 #include <linux/sched/debug.h>
-#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/interrupt.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 985d33f0f315..e6d1a6510886 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -70,6 +70,7 @@
 #include <linux/signal.h>
 #include <linux/fcntl.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/interrupt.h>
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
diff --git a/fs/exec.c b/fs/exec.c
index e857c7260b1f..65145a3df065 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -36,6 +36,7 @@
 #include <linux/sched/coredump.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/numa_balancing.h>
+#include <linux/sched/task.h>
 #include <linux/pagemap.h>
 #include <linux/perf_event.h>
 #include <linux/highmem.h>
diff --git a/fs/fcntl.c b/fs/fcntl.c
index e1c54f20325c..be8fbe289087 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -7,6 +7,7 @@
 #include <linux/syscalls.h>
 #include <linux/init.h>
 #include <linux/mm.h>
+#include <linux/sched/task.h>
 #include <linux/fs.h>
 #include <linux/file.h>
 #include <linux/fdtable.h>
diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index 543ed50f0387..be0250788b73 100644
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -1,5 +1,6 @@
 #include <linux/export.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/fs.h>
 #include <linux/path.h>
 #include <linux/slab.h>
diff --git a/fs/proc/array.c b/fs/proc/array.c
index cfe7f934a300..f3169b58af38 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -62,6 +62,7 @@
 #include <linux/mman.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/numa_balancing.h>
+#include <linux/sched/task.h>
 #include <linux/proc_fs.h>
 #include <linux/ioport.h>
 #include <linux/uaccess.h>
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index ea9f3d1ae830..4ee55274f155 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -28,6 +28,7 @@
 #include <linux/list.h>
 #include <linux/ioport.h>
 #include <linux/memory.h>
+#include <linux/sched/task.h>
 #include <asm/sections.h>
 #include "internal.h"
 
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
new file mode 100644
index 000000000000..0023c91ff821
--- /dev/null
+++ b/include/linux/sched/task.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_TASK_H
+#define _LINUX_SCHED_TASK_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_TASK_H */
diff --git a/init/main.c b/init/main.c
index c891cfb8928f..47956b22add1 100644
--- a/init/main.c
+++ b/init/main.c
@@ -76,6 +76,7 @@
 #include <linux/blkdev.h>
 #include <linux/elevator.h>
 #include <linux/sched_clock.h>
+#include <linux/sched/task.h>
 #include <linux/context_tracking.h>
 #include <linux/random.h>
 #include <linux/list.h>
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index e8f87bf9840c..0125589c7428 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -41,6 +41,7 @@
 #include <linux/proc_fs.h>
 #include <linux/rcupdate.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/percpu-rwsem.h>
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 78c206579d01..f7c063239fa5 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -9,6 +9,7 @@
 #include <linux/notifier.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task.h>
 #include <linux/unistd.h>
 #include <linux/cpu.h>
 #include <linux/oom.h>
diff --git a/kernel/exit.c b/kernel/exit.c
index 5bad7dce1b7b..e53408d156df 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -9,6 +9,7 @@
 #include <linux/sched/autogroup.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/stat.h>
+#include <linux/sched/task.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 8632905f64c5..0af64d5d8b73 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -18,6 +18,7 @@
 #include <linux/sched/user.h>
 #include <linux/sched/numa_balancing.h>
 #include <linux/sched/stat.h>
+#include <linux/sched/task.h>
 #include <linux/rtmutex.h>
 #include <linux/init.h>
 #include <linux/unistd.h>
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 0c407f905ca4..ac5f5c2d098d 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -20,6 +20,7 @@
 */
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/syscalls.h>
 #include <linux/unistd.h>
 #include <linux/kmod.h>
diff --git a/kernel/kthread.c b/kernel/kthread.c
index ef9b9eb809c7..2f26adea0f84 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -7,6 +7,7 @@
  */
 #include <uapi/linux/sched/types.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/kthread.h>
 #include <linux/completion.h>
 #include <linux/err.h>
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index cdafaff926ca..12e38c213b70 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -29,6 +29,7 @@
 #include <linux/mutex.h>
 #include <linux/sched.h>
 #include <linux/sched/clock.h>
+#include <linux/sched/task.h>
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/proc_fs.h>
diff --git a/kernel/pid.c b/kernel/pid.c
index 0291804151b5..0143ac0ddceb 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -38,6 +38,7 @@
 #include <linux/syscalls.h>
 #include <linux/proc_ns.h>
 #include <linux/proc_fs.h>
+#include <linux/sched/task.h>
 
 #define pid_hashfn(nr, ns)	\
 	hash_long((unsigned long)nr + (unsigned long)ns, pidhash_shift)
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 25314c96fbe6..7c8367854dc4 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -19,6 +19,7 @@
 #include <linux/proc_ns.h>
 #include <linux/reboot.h>
 #include <linux/export.h>
+#include <linux/sched/task.h>
 
 struct pid_cache {
 	int nr_ids;
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 85e2915d8961..c7209f060eeb 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -13,6 +13,7 @@
 #include <linux/suspend.h>
 #include <linux/module.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/syscalls.h>
 #include <linux/freezer.h>
 #include <linux/delay.h>
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index bcdbdc19eb35..0af928712174 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -12,6 +12,7 @@
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/coredump.h>
+#include <linux/sched/task.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 0974eb2ef50d..6b7155ae5c33 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -14,6 +14,7 @@
 #include <linux/sched/nohz.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task.h>
 
 #include <linux/u64_stats_sync.h>
 #include <linux/kernel_stat.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index 15092fd8c7b1..25d099fd80f7 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -16,6 +16,7 @@
 #include <linux/sched.h>
 #include <linux/sched/user.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task.h>
 #include <linux/fs.h>
 #include <linux/tty.h>
 #include <linux/binfmts.h>
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index 4a5c6e73ecd4..1d71c051a951 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -9,6 +9,7 @@
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/export.h>
 #include <linux/percpu.h>
 #include <linux/kthread.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index 8c0392c8be51..7f1ecd2e41c1 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -54,6 +54,7 @@
 #include <linux/sched/stat.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/coredump.h>
+#include <linux/sched/task.h>
 #include <linux/rcupdate.h>
 #include <linux/uidgid.h>
 #include <linux/cred.h>
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 0c0609326391..0d1597c9ee30 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -15,6 +15,7 @@
 
 #include <linux/stop_machine.h>
 #include <linux/clocksource.h>
+#include <linux/sched/task.h>
 #include <linux/kallsyms.h>
 #include <linux/seq_file.h>
 #include <linux/suspend.h>
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 9f6984d52fec..685c50ae6300 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -25,6 +25,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/static_key.h>
 
 extern struct tracepoint * const __start___tracepoints_ptrs[];
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 60c57ec936db..942adf13418d 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -19,6 +19,7 @@
 
 #include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
+#include <linux/sched/task.h>
 #include <linux/stacktrace.h>
 #include <linux/dma-debug.h>
 #include <linux/spinlock.h>
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 2df6d3687b2a..a3970573359e 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -74,6 +74,7 @@
 #include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/jiffies.h>
 #include <linux/delay.h>
 #include <linux/export.h>
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index b74984db386e..27f7210e7fab 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -41,6 +41,7 @@
 #include <linux/page-flags.h>
 #include <linux/kernel-page-flags.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/ksm.h>
 #include <linux/rmap.h>
 #include <linux/export.h>
diff --git a/mm/memory.c b/mm/memory.c
index d4994a28dc85..a97a4cec2e1f 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -43,6 +43,7 @@
 #include <linux/sched/mm.h>
 #include <linux/sched/coredump.h>
 #include <linux/sched/numa_balancing.h>
+#include <linux/sched/task.h>
 #include <linux/hugetlb.h>
 #include <linux/mman.h>
 #include <linux/swap.h>
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 69f75b014607..d083714a2bb9 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -24,6 +24,7 @@
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/coredump.h>
+#include <linux/sched/task.h>
 #include <linux/swap.h>
 #include <linux/timex.h>
 #include <linux/jiffies.h>
diff --git a/mm/rmap.c b/mm/rmap.c
index 0367a0506667..2da487d6cea8 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -47,6 +47,7 @@
 
 #include <linux/mm.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/task.h>
 #include <linux/pagemap.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
diff --git a/mm/swapfile.c b/mm/swapfile.c
index ff2bf3f61b14..521ef9b6064f 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -7,6 +7,7 @@
 
 #include <linux/mm.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/task.h>
 #include <linux/hugetlb.h>
 #include <linux/mman.h>
 #include <linux/slab.h>
diff --git a/mm/usercopy.c b/mm/usercopy.c
index 7ccad05c0d5c..d155e12563b1 100644
--- a/mm/usercopy.c
+++ b/mm/usercopy.c
@@ -17,6 +17,8 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <asm/sections.h>
 
 enum {
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index bcb0b597c391..52c34532c785 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/sched/task.h>
 #include <linux/slab.h>
 #include <linux/syscalls.h>
 #include <linux/key.h>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index b12f873f92ba..57ff53696144 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -29,6 +29,7 @@
 #include <linux/tracehook.h>
 #include <linux/errno.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task.h>
 #include <linux/lsm_hooks.h>
 #include <linux/xattr.h>
 #include <linux/capability.h>
-- 
cgit 


From 68db0cf10678630d286f4bbbbdfa102951a35faa Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 8 Feb 2017 18:51:37 +0100
Subject: sched/headers: Prepare for new header dependencies before moving code
 to <linux/sched/task_stack.h>

We are going to split <linux/sched/task_stack.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/task_stack.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/alpha/kernel/osf_sys.c            | 1 +
 arch/alpha/kernel/process.c            | 1 +
 arch/alpha/kernel/ptrace.c             | 1 +
 arch/alpha/kernel/signal.c             | 1 +
 arch/arc/kernel/kgdb.c                 | 1 +
 arch/arc/kernel/process.c              | 1 +
 arch/arc/kernel/ptrace.c               | 1 +
 arch/arc/kernel/signal.c               | 2 ++
 arch/arm/kernel/perf_regs.c            | 1 +
 arch/arm/kernel/process.c              | 1 +
 arch/arm/kernel/ptrace.c               | 1 +
 arch/arm/kernel/smp.c                  | 1 +
 arch/arm/kernel/traps.c                | 1 +
 arch/arm64/include/asm/compat.h        | 1 +
 arch/arm64/kernel/debug-monitors.c     | 1 +
 arch/arm64/kernel/kgdb.c               | 2 ++
 arch/arm64/kernel/perf_regs.c          | 1 +
 arch/arm64/kernel/process.c            | 1 +
 arch/arm64/kernel/ptrace.c             | 1 +
 arch/arm64/kernel/smp.c                | 1 +
 arch/arm64/kernel/stacktrace.c         | 1 +
 arch/arm64/kernel/traps.c              | 1 +
 arch/avr32/kernel/process.c            | 1 +
 arch/avr32/kernel/ptrace.c             | 1 +
 arch/avr32/kernel/stacktrace.c         | 1 +
 arch/blackfin/kernel/process.c         | 1 +
 arch/blackfin/kernel/ptrace.c          | 1 +
 arch/blackfin/kernel/signal.c          | 1 +
 arch/blackfin/kernel/stacktrace.c      | 1 +
 arch/blackfin/mach-common/smp.c        | 1 +
 arch/c6x/kernel/process.c              | 1 +
 arch/c6x/kernel/ptrace.c               | 1 +
 arch/cris/arch-v10/kernel/process.c    | 1 +
 arch/cris/arch-v10/kernel/ptrace.c     | 1 +
 arch/cris/arch-v10/kernel/signal.c     | 1 +
 arch/cris/arch-v32/kernel/process.c    | 1 +
 arch/cris/arch-v32/kernel/ptrace.c     | 1 +
 arch/cris/arch-v32/kernel/signal.c     | 1 +
 arch/frv/kernel/process.c              | 1 +
 arch/h8300/kernel/process.c            | 1 +
 arch/h8300/kernel/signal.c             | 1 +
 arch/hexagon/kernel/kgdb.c             | 1 +
 arch/hexagon/kernel/process.c          | 1 +
 arch/hexagon/kernel/ptrace.c           | 1 +
 arch/hexagon/kernel/signal.c           | 2 ++
 arch/hexagon/kernel/stacktrace.c       | 1 +
 arch/hexagon/kernel/traps.c            | 1 +
 arch/ia64/kernel/perfmon.c             | 1 +
 arch/ia64/kernel/process.c             | 1 +
 arch/ia64/kernel/ptrace.c              | 1 +
 arch/ia64/kernel/setup.c               | 1 +
 arch/ia64/kernel/sys_ia64.c            | 1 +
 arch/m32r/kernel/process.c             | 1 +
 arch/m32r/kernel/ptrace.c              | 1 +
 arch/m68k/kernel/process.c             | 1 +
 arch/m68k/kernel/ptrace.c              | 1 +
 arch/metag/kernel/process.c            | 1 +
 arch/metag/kernel/ptrace.c             | 2 ++
 arch/metag/kernel/signal.c             | 1 +
 arch/metag/kernel/smp.c                | 1 +
 arch/metag/kernel/traps.c              | 1 +
 arch/microblaze/kernel/process.c       | 1 +
 arch/microblaze/kernel/ptrace.c        | 1 +
 arch/microblaze/kernel/unwind.c        | 1 +
 arch/mips/include/asm/fpu.h            | 1 +
 arch/mips/kernel/crash.c               | 1 +
 arch/mips/kernel/perf_event.c          | 1 +
 arch/mips/kernel/process.c             | 1 +
 arch/mips/kernel/ptrace.c              | 1 +
 arch/mips/kernel/ptrace32.c            | 1 +
 arch/mips/kernel/stacktrace.c          | 1 +
 arch/mips/kernel/syscall.c             | 1 +
 arch/mips/loongson64/loongson-3/smp.c  | 1 +
 arch/mips/paravirt/paravirt-smp.c      | 1 +
 arch/mips/sibyte/bcm1480/smp.c         | 1 +
 arch/mn10300/kernel/process.c          | 1 +
 arch/mn10300/kernel/ptrace.c           | 1 +
 arch/nios2/kernel/process.c            | 1 +
 arch/nios2/kernel/ptrace.c             | 1 +
 arch/openrisc/kernel/process.c         | 1 +
 arch/openrisc/kernel/ptrace.c          | 1 +
 arch/parisc/kernel/process.c           | 1 +
 arch/powerpc/kernel/process.c          | 1 +
 arch/powerpc/mm/fault.c                | 1 +
 arch/powerpc/perf/perf_regs.c          | 1 +
 arch/s390/include/asm/compat.h         | 1 +
 arch/s390/include/asm/kprobes.h        | 1 +
 arch/s390/kernel/compat_signal.c       | 1 +
 arch/s390/kernel/dumpstack.c           | 1 +
 arch/s390/kernel/process.c             | 1 +
 arch/s390/kernel/ptrace.c              | 1 +
 arch/s390/kernel/runtime_instr.c       | 2 ++
 arch/s390/kernel/signal.c              | 1 +
 arch/s390/kernel/smp.c                 | 1 +
 arch/s390/kernel/uprobes.c             | 2 ++
 arch/score/kernel/process.c            | 1 +
 arch/score/kernel/ptrace.c             | 1 +
 arch/sh/kernel/cpu/fpu.c               | 1 +
 arch/sh/kernel/dumpstack.c             | 1 +
 arch/sh/kernel/kgdb.c                  | 2 ++
 arch/sh/kernel/process.c               | 1 +
 arch/sh/kernel/process_32.c            | 1 +
 arch/sh/kernel/process_64.c            | 1 +
 arch/sh/kernel/ptrace_32.c             | 1 +
 arch/sh/kernel/ptrace_64.c             | 1 +
 arch/sh/kernel/signal_32.c             | 1 +
 arch/sh/kernel/sys_sh32.c              | 1 +
 arch/sh/kernel/traps.c                 | 1 +
 arch/sh/kernel/traps_32.c              | 2 ++
 arch/sparc/kernel/process_32.c         | 1 +
 arch/sparc/kernel/process_64.c         | 1 +
 arch/sparc/kernel/ptrace_64.c          | 1 +
 arch/tile/kernel/compat_signal.c       | 1 +
 arch/tile/kernel/kgdb.c                | 2 ++
 arch/tile/kernel/process.c             | 1 +
 arch/tile/kernel/ptrace.c              | 2 ++
 arch/tile/kernel/signal.c              | 1 +
 arch/tile/kernel/stack.c               | 1 +
 arch/um/kernel/exec.c                  | 1 +
 arch/um/kernel/process.c               | 1 +
 arch/um/kernel/skas/process.c          | 1 +
 arch/unicore32/kernel/process.c        | 1 +
 arch/unicore32/kernel/ptrace.c         | 1 +
 arch/unicore32/kernel/traps.c          | 1 +
 arch/x86/entry/common.c                | 1 +
 arch/x86/entry/vdso/vma.c              | 1 +
 arch/x86/ia32/ia32_aout.c              | 1 +
 arch/x86/ia32/ia32_signal.c            | 1 +
 arch/x86/kernel/dumpstack.c            | 1 +
 arch/x86/kernel/fpu/regset.c           | 1 +
 arch/x86/kernel/ioport.c               | 1 +
 arch/x86/kernel/irq_64.c               | 1 +
 arch/x86/kernel/perf_regs.c            | 1 +
 arch/x86/kernel/process.c              | 1 +
 arch/x86/kernel/process_32.c           | 1 +
 arch/x86/kernel/process_64.c           | 1 +
 arch/x86/kernel/ptrace.c               | 1 +
 arch/x86/kernel/signal.c               | 1 +
 arch/x86/kernel/smpboot.c              | 1 +
 arch/x86/kernel/stacktrace.c           | 1 +
 arch/x86/kernel/step.c                 | 1 +
 arch/x86/kernel/traps.c                | 1 +
 arch/x86/kernel/unwind_frame.c         | 1 +
 arch/x86/kernel/vm86_32.c              | 1 +
 arch/x86/mm/fault.c                    | 1 +
 arch/xtensa/kernel/process.c           | 1 +
 arch/xtensa/kernel/ptrace.c            | 1 +
 arch/xtensa/kernel/signal.c            | 1 +
 arch/xtensa/kernel/smp.c               | 1 +
 block/blk-map.c                        | 1 +
 drivers/hv/vmbus_drv.c                 | 2 ++
 drivers/ide/ide-cd.c                   | 1 +
 drivers/md/bcache/closure.h            | 1 +
 drivers/misc/lkdtm_usercopy.c          | 1 +
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 1 +
 fs/binfmt_aout.c                       | 1 +
 fs/binfmt_elf.c                        | 1 +
 fs/binfmt_elf_fdpic.c                  | 3 ++-
 fs/binfmt_flat.c                       | 1 +
 fs/coredump.c                          | 1 +
 include/linux/elfcore.h                | 2 ++
 include/linux/perf_regs.h              | 2 ++
 include/linux/sched/task_stack.h       | 6 ++++++
 init/main.c                            | 1 +
 kernel/events/callchain.c              | 2 ++
 kernel/exit.c                          | 1 +
 kernel/fork.c                          | 1 +
 kernel/printk/printk.c                 | 1 +
 kernel/sched/sched.h                   | 1 +
 kernel/seccomp.c                       | 1 +
 kernel/signal.c                        | 1 +
 kernel/trace/trace_stack.c             | 1 +
 lib/debugobjects.c                     | 1 +
 lib/dma-debug.c                        | 1 +
 lib/syscall.c                          | 1 +
 mm/kasan/kasan.c                       | 1 +
 mm/kmemleak.c                          | 1 +
 mm/util.c                              | 1 +
 178 files changed, 198 insertions(+), 1 deletion(-)
 create mode 100644 include/linux/sched/task_stack.h

(limited to 'kernel/exit.c')

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 3b9b2a382ba2..73446baa632e 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -13,6 +13,7 @@
 #include <linux/errno.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 713b4fac998e..0b9635040721 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index bc4d2cdcf21d..285a82d491ef 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -6,6 +6,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index b8221f112eee..8129dd92cadc 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/errno.h>
diff --git a/arch/arc/kernel/kgdb.c b/arch/arc/kernel/kgdb.c
index ecf6a7869375..9a3c34af2ae8 100644
--- a/arch/arc/kernel/kgdb.c
+++ b/arch/arc/kernel/kgdb.c
@@ -10,6 +10,7 @@
 
 #include <linux/kgdb.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <asm/disasm.h>
 #include <asm/cacheflush.h>
 
diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index d618d26721ab..2a018de6d6cd 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 
 #include <linux/mm.h>
 #include <linux/fs.h>
diff --git a/arch/arc/kernel/ptrace.c b/arch/arc/kernel/ptrace.c
index 4442204fe238..31150060d38b 100644
--- a/arch/arc/kernel/ptrace.c
+++ b/arch/arc/kernel/ptrace.c
@@ -8,6 +8,7 @@
 
 #include <linux/ptrace.h>
 #include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
 #include <linux/regset.h>
 #include <linux/unistd.h>
 #include <linux/elf.h>
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index d347bbc086fe..48685445002e 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -53,6 +53,8 @@
 #include <linux/uaccess.h>
 #include <linux/syscalls.h>
 #include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/ucontext.h>
 
 struct rt_sigframe {
diff --git a/arch/arm/kernel/perf_regs.c b/arch/arm/kernel/perf_regs.c
index 592dda3f21ff..c366b83bf955 100644
--- a/arch/arm/kernel/perf_regs.c
+++ b/arch/arm/kernel/perf_regs.c
@@ -3,6 +3,7 @@
 #include <linux/kernel.h>
 #include <linux/perf_event.h>
 #include <linux/bug.h>
+#include <linux/sched/task_stack.h>
 #include <asm/perf_regs.h>
 #include <asm/ptrace.h>
 
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index d4c7c9a1afa9..939e8b58c59d 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -14,6 +14,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 46f7bab81c40..58e3771e4c5b 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -11,6 +11,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/elf.h>
 #include <linux/smp.h>
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 2083a5370308..b724cff7ad60 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -13,6 +13,7 @@
 #include <linux/spinlock.h>
 #include <linux/sched.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/interrupt.h>
 #include <linux/cache.h>
 #include <linux/profile.h>
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index a9dad001b97d..948c648fea00 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -26,6 +26,7 @@
 #include <linux/init.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/irq.h>
 
 #include <linux/atomic.h>
diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index eb8432bb82b8..e39d487bf724 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -23,6 +23,7 @@
  */
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 
 #define COMPAT_USER_HZ		100
 #ifdef __AARCH64EB__
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index 2bd426448fc1..32913567da08 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -26,6 +26,7 @@
 #include <linux/kprobes.h>
 #include <linux/stat.h>
 #include <linux/uaccess.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/cpufeature.h>
 #include <asm/cputype.h>
diff --git a/arch/arm64/kernel/kgdb.c b/arch/arm64/kernel/kgdb.c
index d217c9e95b06..2122cd187f19 100644
--- a/arch/arm64/kernel/kgdb.c
+++ b/arch/arm64/kernel/kgdb.c
@@ -24,6 +24,8 @@
 #include <linux/kdebug.h>
 #include <linux/kgdb.h>
 #include <linux/kprobes.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/debug-monitors.h>
 #include <asm/insn.h>
 #include <asm/traps.h>
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index 3f62b35fb6f1..bd1b74c2436f 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -2,6 +2,7 @@
 #include <linux/kernel.h>
 #include <linux/perf_event.h>
 #include <linux/bug.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/compat.h>
 #include <asm/perf_regs.h>
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index f9b8e74ff8f2..043d373b8369 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -26,6 +26,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 64fc32ea3422..c142459a88f3 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -23,6 +23,7 @@
 #include <linux/compat.h>
 #include <linux/kernel.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/ptrace.h>
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index f66e58523b96..83c0a839a6ad 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -23,6 +23,7 @@
 #include <linux/spinlock.h>
 #include <linux/sched.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/interrupt.h>
 #include <linux/cache.h>
 #include <linux/profile.h>
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index 7597e42feeea..feac80c22f61 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -20,6 +20,7 @@
 #include <linux/ftrace.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 
 #include <asm/irq.h>
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 5a5d83791837..bdbd0c3febf4 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -31,6 +31,7 @@
 #include <linux/init.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/syscalls.h>
 
 #include <asm/atomic.h>
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 75b944a5107c..ad0dfccedb79 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -8,6 +8,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
 #include <linux/fs.h>
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
index a89b893279bb..41a14e96a1db 100644
--- a/arch/avr32/kernel/ptrace.c
+++ b/arch/avr32/kernel/ptrace.c
@@ -8,6 +8,7 @@
 #undef DEBUG
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/ptrace.h>
 #include <linux/errno.h>
diff --git a/arch/avr32/kernel/stacktrace.c b/arch/avr32/kernel/stacktrace.c
index c09f0d8dd679..f8cc995cf0e0 100644
--- a/arch/avr32/kernel/stacktrace.c
+++ b/arch/avr32/kernel/stacktrace.c
@@ -8,6 +8,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 #include <linux/thread_info.h>
 #include <linux/module.h>
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 1a1f444004b1..b691ef875a40 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -14,6 +14,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/tick.h>
 #include <linux/fs.h>
 #include <linux/err.h>
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index 360d99645163..a6827095b99a 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -7,6 +7,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/elf.h>
diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c
index ea570db598e5..5f5172779204 100644
--- a/arch/blackfin/kernel/signal.c
+++ b/arch/blackfin/kernel/signal.c
@@ -12,6 +12,7 @@
 #include <linux/binfmts.h>
 #include <linux/uaccess.h>
 #include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/cacheflush.h>
 #include <asm/ucontext.h>
diff --git a/arch/blackfin/kernel/stacktrace.c b/arch/blackfin/kernel/stacktrace.c
index 30301e1eace5..17198f3650b6 100644
--- a/arch/blackfin/kernel/stacktrace.c
+++ b/arch/blackfin/kernel/stacktrace.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 #include <linux/thread_info.h>
 #include <linux/module.h>
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index a2e6db2ce811..3ac98252d299 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <linux/spinlock.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/interrupt.h>
 #include <linux/cache.h>
 #include <linux/clockchips.h>
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index 6b61779d426a..c4ecb24c2d5c 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -18,6 +18,7 @@
 #include <linux/syscalls.h>
 #include <linux/reboot.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/syscalls.h>
 
diff --git a/arch/c6x/kernel/ptrace.c b/arch/c6x/kernel/ptrace.c
index 3c494e84444d..a27e1f02ce18 100644
--- a/arch/c6x/kernel/ptrace.c
+++ b/arch/c6x/kernel/ptrace.c
@@ -14,6 +14,7 @@
 #include <linux/tracehook.h>
 #include <linux/regset.h>
 #include <linux/elf.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/cacheflush.h>
 
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index 808c2186b704..e299d30105b5 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/fs.h>
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index eca94c7d56e7..c2f2b9b83cc4 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -4,6 +4,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c
index db30c98e4926..bab4a8dd6bfd 100644
--- a/arch/cris/arch-v10/kernel/signal.c
+++ b/arch/cris/arch-v10/kernel/signal.c
@@ -14,6 +14,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index c852df262948..c530a8fa87ce 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -11,6 +11,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/fs.h>
diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c
index c366bc05466a..0461e95bbb62 100644
--- a/arch/cris/arch-v32/kernel/ptrace.c
+++ b/arch/cris/arch-v32/kernel/ptrace.c
@@ -4,6 +4,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c
index 816bf2ca93ef..ea2e8e1398e8 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -3,6 +3,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index c96dbd4b8626..5a4c92abc99e 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -15,6 +15,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index 54e4d6f01865..0f5db5bb561b 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -27,6 +27,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c
index d784f7117f9a..1e8070d08770 100644
--- a/arch/h8300/kernel/signal.c
+++ b/arch/h8300/kernel/signal.c
@@ -25,6 +25,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
diff --git a/arch/hexagon/kernel/kgdb.c b/arch/hexagon/kernel/kgdb.c
index 62dece3ad827..16c24b22d0b2 100644
--- a/arch/hexagon/kernel/kgdb.c
+++ b/arch/hexagon/kernel/kgdb.c
@@ -20,6 +20,7 @@
 
 #include <linux/irq.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kdebug.h>
 #include <linux/kgdb.h>
 
diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c
index a2a822a875b6..de715bab7956 100644
--- a/arch/hexagon/kernel/process.c
+++ b/arch/hexagon/kernel/process.c
@@ -21,6 +21,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/types.h>
 #include <linux/module.h>
 #include <linux/tick.h>
diff --git a/arch/hexagon/kernel/ptrace.c b/arch/hexagon/kernel/ptrace.c
index 390a9ad14ca1..ecd75e2e8eb3 100644
--- a/arch/hexagon/kernel/ptrace.c
+++ b/arch/hexagon/kernel/ptrace.c
@@ -22,6 +22,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c
index c6b22b9945a7..78aa7304a5c9 100644
--- a/arch/hexagon/kernel/signal.c
+++ b/arch/hexagon/kernel/signal.c
@@ -21,6 +21,8 @@
 #include <linux/linkage.h>
 #include <linux/syscalls.h>
 #include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/registers.h>
 #include <asm/thread_info.h>
 #include <asm/unistd.h>
diff --git a/arch/hexagon/kernel/stacktrace.c b/arch/hexagon/kernel/stacktrace.c
index f94918b449a8..41866a06adf7 100644
--- a/arch/hexagon/kernel/stacktrace.c
+++ b/arch/hexagon/kernel/stacktrace.c
@@ -19,6 +19,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 #include <linux/thread_info.h>
 #include <linux/module.h>
diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c
index b55f13c70b34..2942a9204a9a 100644
--- a/arch/hexagon/kernel/traps.c
+++ b/arch/hexagon/kernel/traps.c
@@ -21,6 +21,7 @@
 #include <linux/init.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
 #include <linux/kdebug.h>
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 7e943d3c05ed..09f86ebfcc7b 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -23,6 +23,7 @@
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/interrupt.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index 054facf22156..d344d0d691aa 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -23,6 +23,7 @@
 #include <linux/sched/debug.h>
 #include <linux/sched/hotplug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/stddef.h>
 #include <linux/thread_info.h>
 #include <linux/unistd.h>
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 04fe1436e1cc..3f8293378a83 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -12,6 +12,7 @@
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 32a6cc36296f..b2b4f5216180 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -33,6 +33,7 @@
 #include <linux/reboot.h>
 #include <linux/sched.h>
 #include <linux/sched/clock.h>
+#include <linux/sched/task_stack.h>
 #include <linux/seq_file.h>
 #include <linux/string.h>
 #include <linux/threads.h>
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index ce4cc60d519b..5ce927c854a6 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -11,6 +11,7 @@
 #include <linux/mman.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/task_stack.h>
 #include <linux/shm.h>
 #include <linux/file.h>		/* doh, must come after sched.h... */
 #include <linux/smp.h>
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index 2a450382934c..d8ffcfec599c 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/module.h>
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index a68acb9fa515..2d887400e30e 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -16,6 +16,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/err.h>
 #include <linux/smp.h>
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 5d335d178706..e475c945c8b2 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -15,6 +15,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index 9cd86d7343a6..748c63bd0081 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -12,6 +12,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index 801e6f927e62..c4606ce743d2 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -10,6 +10,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/unistd.h>
diff --git a/arch/metag/kernel/ptrace.c b/arch/metag/kernel/ptrace.c
index 7563628822bd..5fd16ee5280c 100644
--- a/arch/metag/kernel/ptrace.c
+++ b/arch/metag/kernel/ptrace.c
@@ -15,6 +15,8 @@
 #include <linux/tracehook.h>
 #include <linux/elf.h>
 #include <linux/uaccess.h>
+#include <linux/sched/task_stack.h>
+
 #include <trace/syscall.h>
 
 #define CREATE_TRACE_POINTS
diff --git a/arch/metag/kernel/signal.c b/arch/metag/kernel/signal.c
index ce49d429c74a..338925d808e6 100644
--- a/arch/metag/kernel/signal.c
+++ b/arch/metag/kernel/signal.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/metag/kernel/smp.c b/arch/metag/kernel/smp.c
index 198eda75846b..cab2aa64ca82 100644
--- a/arch/metag/kernel/smp.c
+++ b/arch/metag/kernel/smp.c
@@ -14,6 +14,7 @@
 #include <linux/spinlock.h>
 #include <linux/sched.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/interrupt.h>
 #include <linux/cache.h>
 #include <linux/profile.h>
diff --git a/arch/metag/kernel/traps.c b/arch/metag/kernel/traps.c
index 23c5ac33a93f..444851e510d5 100644
--- a/arch/metag/kernel/traps.c
+++ b/arch/metag/kernel/traps.c
@@ -12,6 +12,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/signal.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index a642fe5ac5ff..e92a817e645f 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/pm.h>
 #include <linux/tick.h>
 #include <linux/bitops.h>
diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index 8cfa98cadf3d..badd286882ae 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -27,6 +27,7 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/ptrace.h>
 #include <linux/signal.h>
 #include <linux/elf.h>
diff --git a/arch/microblaze/kernel/unwind.c b/arch/microblaze/kernel/unwind.c
index 61c04eed14d5..34c270cb11fc 100644
--- a/arch/microblaze/kernel/unwind.c
+++ b/arch/microblaze/kernel/unwind.c
@@ -17,6 +17,7 @@
 #include <linux/kallsyms.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 #include <linux/types.h>
 #include <linux/errno.h>
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index f06f97bd62df..321752bcbab6 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -11,6 +11,7 @@
 #define _ASM_FPU_H
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/thread_info.h>
 #include <linux/bitops.h>
 
diff --git a/arch/mips/kernel/crash.c b/arch/mips/kernel/crash.c
index 5a71518be0f1..ca25cd393b1c 100644
--- a/arch/mips/kernel/crash.c
+++ b/arch/mips/kernel/crash.c
@@ -8,6 +8,7 @@
 #include <linux/irq.h>
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 
 /* This keeps a track of which one is crashing cpu. */
 static int crashing_cpu = -1;
diff --git a/arch/mips/kernel/perf_event.c b/arch/mips/kernel/perf_event.c
index d64056e0bb56..f298eb2ff6c2 100644
--- a/arch/mips/kernel/perf_event.c
+++ b/arch/mips/kernel/perf_event.c
@@ -15,6 +15,7 @@
  */
 
 #include <linux/perf_event.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/stacktrace.h>
 
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 8bfb833b3158..fb6b6b650719 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/tick.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index fdef26382c37..339601267265 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -19,6 +19,7 @@
 #include <linux/elf.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index 4f0998525626..40e212d6b26b 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -18,6 +18,7 @@
 #include <linux/compat.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c
index 986f910961d9..7c7c902249f2 100644
--- a/arch/mips/kernel/stacktrace.c
+++ b/arch/mips/kernel/stacktrace.c
@@ -5,6 +5,7 @@
  */
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 #include <linux/export.h>
 #include <asm/stacktrace.h>
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index c86ddbaa4598..f1d17ece4181 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -26,6 +26,7 @@
 #include <linux/uaccess.h>
 #include <linux/slab.h>
 #include <linux/elf.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/asm.h>
 #include <asm/branch.h>
diff --git a/arch/mips/loongson64/loongson-3/smp.c b/arch/mips/loongson64/loongson-3/smp.c
index 66ede5b11355..64659fc73940 100644
--- a/arch/mips/loongson64/loongson-3/smp.c
+++ b/arch/mips/loongson64/loongson-3/smp.c
@@ -18,6 +18,7 @@
 #include <linux/cpu.h>
 #include <linux/sched.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/smp.h>
 #include <linux/cpufreq.h>
 #include <asm/processor.h>
diff --git a/arch/mips/paravirt/paravirt-smp.c b/arch/mips/paravirt/paravirt-smp.c
index f8d3e081b2eb..72eb1a56c645 100644
--- a/arch/mips/paravirt/paravirt-smp.c
+++ b/arch/mips/paravirt/paravirt-smp.c
@@ -10,6 +10,7 @@
 #include <linux/cpumask.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/mipsregs.h>
 #include <asm/setup.h>
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
index 4c71aea25663..d0e94ffcc1b8 100644
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -21,6 +21,7 @@
 #include <linux/smp.h>
 #include <linux/kernel_stat.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/mmu_context.h>
 #include <asm/io.h>
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 8ca7a9de09a5..c9fa42619c6a 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/mn10300/kernel/ptrace.c b/arch/mn10300/kernel/ptrace.c
index 976020f469c1..8009876a7ac4 100644
--- a/arch/mn10300/kernel/ptrace.c
+++ b/arch/mn10300/kernel/ptrace.c
@@ -11,6 +11,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/nios2/kernel/process.c b/arch/nios2/kernel/process.c
index 5ee1ddf6a924..869a4d59de32 100644
--- a/arch/nios2/kernel/process.c
+++ b/arch/nios2/kernel/process.c
@@ -16,6 +16,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/tick.h>
 #include <linux/uaccess.h>
 
diff --git a/arch/nios2/kernel/ptrace.c b/arch/nios2/kernel/ptrace.c
index 681dda92eff1..de97bcb7dd44 100644
--- a/arch/nios2/kernel/ptrace.c
+++ b/arch/nios2/kernel/ptrace.c
@@ -14,6 +14,7 @@
 #include <linux/ptrace.h>
 #include <linux/regset.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/tracehook.h>
 #include <linux/uaccess.h>
 #include <linux/user.h>
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 0c5ad3bde0f5..828a29110459 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -24,6 +24,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mm.h>
diff --git a/arch/openrisc/kernel/ptrace.c b/arch/openrisc/kernel/ptrace.c
index 228288887d74..eb97a8e7c8aa 100644
--- a/arch/openrisc/kernel/ptrace.c
+++ b/arch/openrisc/kernel/ptrace.c
@@ -18,6 +18,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/string.h>
 
 #include <linux/mm.h>
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index e5f97239cc5e..06f7ca7fe70b 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -45,6 +45,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <linux/stddef.h>
 #include <linux/unistd.h>
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index b99b12656f6f..d645da302bf2 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -18,6 +18,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 8dc758658972..51def8a515be 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -17,6 +17,7 @@
 
 #include <linux/signal.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/string.h>
diff --git a/arch/powerpc/perf/perf_regs.c b/arch/powerpc/perf/perf_regs.c
index d24a8a3668fa..cbd82fde5770 100644
--- a/arch/powerpc/perf/perf_regs.c
+++ b/arch/powerpc/perf/perf_regs.c
@@ -10,6 +10,7 @@
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/perf_event.h>
 #include <linux/bug.h>
 #include <linux/stddef.h>
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 352f7bdaf11f..0ddd37e6c29d 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -5,6 +5,7 @@
  */
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/thread_info.h>
 
 #define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p(typeof(0?(t)0:0ULL), u64))
diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h
index 84c0f9086483..1293c4066cfc 100644
--- a/arch/s390/include/asm/kprobes.h
+++ b/arch/s390/include/asm/kprobes.h
@@ -35,6 +35,7 @@
 #include <linux/types.h>
 #include <linux/ptrace.h>
 #include <linux/percpu.h>
+#include <linux/sched/task_stack.h>
 
 #define __ARCH_WANT_KPROBES_INSN_SLOT
 
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 362350cc485c..c620049c61f2 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -10,6 +10,7 @@
 
 #include <linux/compat.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 72c584d62f59..829e1c53005c 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <asm/processor.h>
 #include <asm/debug.h>
 #include <asm/dis.h>
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 250c41f05721..20cd339e11ae 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/elfcore.h>
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 12020b55887b..c14df0a1ec3c 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -8,6 +8,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/s390/kernel/runtime_instr.c b/arch/s390/kernel/runtime_instr.c
index fffa0e5462af..429d3a782f1c 100644
--- a/arch/s390/kernel/runtime_instr.c
+++ b/arch/s390/kernel/runtime_instr.c
@@ -11,6 +11,8 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/kernel_stat.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/runtime_instr.h>
 #include <asm/cpu_mf.h>
 #include <asm/irq.h>
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 62a4c263e887..289dd50f9744 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index b5766e03cdcb..47a973b5b4f1 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -32,6 +32,7 @@
 #include <linux/cpu.h>
 #include <linux/slab.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/crash_dump.h>
 #include <linux/memblock.h>
 #include <asm/asm-offsets.h>
diff --git a/arch/s390/kernel/uprobes.c b/arch/s390/kernel/uprobes.c
index 66956c09d5bf..314e0ee3016a 100644
--- a/arch/s390/kernel/uprobes.c
+++ b/arch/s390/kernel/uprobes.c
@@ -9,6 +9,8 @@
 #include <linux/uprobes.h>
 #include <linux/compat.h>
 #include <linux/kdebug.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/switch_to.h>
 #include <asm/facility.h>
 #include <asm/kprobes.h>
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index 32924159d8c9..eb64d7a677cb 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -29,6 +29,7 @@
 #include <linux/pm.h>
 #include <linux/rcupdate.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 
 void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
diff --git a/arch/score/kernel/ptrace.c b/arch/score/kernel/ptrace.c
index 8b75e54816c1..d8455e60bce0 100644
--- a/arch/score/kernel/ptrace.c
+++ b/arch/score/kernel/ptrace.c
@@ -28,6 +28,7 @@
 #include <linux/mm.h>
 #include <linux/ptrace.h>
 #include <linux/regset.h>
+#include <linux/sched/task_stack.h>
 
 #include <linux/uaccess.h>
 
diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index b76370a47bf9..547c73478459 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -1,5 +1,6 @@
 #include <linux/sched/signal.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <asm/processor.h>
 #include <asm/fpu.h>
diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c
index d00cab2f50f9..b564b1eae4ae 100644
--- a/arch/sh/kernel/dumpstack.c
+++ b/arch/sh/kernel/dumpstack.c
@@ -12,6 +12,7 @@
 #include <linux/ftrace.h>
 #include <linux/debug_locks.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kdebug.h>
 #include <linux/export.h>
 #include <linux/uaccess.h>
diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index adad46e41a1d..4f04c6638a4d 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -14,6 +14,8 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/cacheflush.h>
 #include <asm/traps.h>
 
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 80a61c5e3015..f8a695a223dd 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -2,6 +2,7 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
 #include <linux/export.h>
 #include <linux/stackprotector.h>
 #include <asm/fpu.h>
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index 493c3eb86aa5..2c7bdf8cb934 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -17,6 +17,7 @@
 #include <linux/mm.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <linux/elfcore.h>
 #include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 056607185158..ee2abe96f9f3 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -27,6 +27,7 @@
 #include <linux/io.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <asm/syscalls.h>
 #include <linux/uaccess.h>
 #include <asm/pgtable.h>
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c
index 1aabfd356b35..5fc3ff606210 100644
--- a/arch/sh/kernel/ptrace_32.c
+++ b/arch/sh/kernel/ptrace_32.c
@@ -12,6 +12,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c
index c49d0d05a215..1e0656d9e7af 100644
--- a/arch/sh/kernel/ptrace_64.c
+++ b/arch/sh/kernel/ptrace_64.c
@@ -18,6 +18,7 @@
 #include <linux/kernel.h>
 #include <linux/rwsem.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/bitops.h>
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 5128d3001ee5..08bce11badc6 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -9,6 +9,7 @@
  *
  */
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/sh/kernel/sys_sh32.c b/arch/sh/kernel/sys_sh32.c
index d5287d76809c..a2e1231a90a3 100644
--- a/arch/sh/kernel/sys_sh32.c
+++ b/arch/sh/kernel/sys_sh32.c
@@ -1,5 +1,6 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/sem.h>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index bc5c9f347b9e..b32d1c3a4655 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -5,6 +5,7 @@
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/uaccess.h>
 #include <linux/hardirq.h>
 #include <linux/kernel.h>
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index ff639342a8be..57cff00cad17 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -25,6 +25,8 @@
 #include <linux/sysfs.h>
 #include <linux/uaccess.h>
 #include <linux/perf_event.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/alignment.h>
 #include <asm/fpu.h>
 #include <asm/kprobes.h>
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index ed87c45a785b..b6dac8e980f0 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -16,6 +16,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 4c82a73af893..1badc493e62e 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -16,6 +16,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 901063c1cf7e..df9e731a76f5 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -12,6 +12,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/export.h>
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index c667e104a0c2..0e863f1ee08c 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/tile/kernel/kgdb.c b/arch/tile/kernel/kgdb.c
index 9247d6b562f4..d4eb5fb2df9d 100644
--- a/arch/tile/kernel/kgdb.c
+++ b/arch/tile/kernel/kgdb.c
@@ -19,6 +19,8 @@
 #include <linux/kdebug.h>
 #include <linux/uaccess.h>
 #include <linux/module.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/cacheflush.h>
 
 static tile_bundle_bits singlestep_insn = TILEGX_BPT_BUNDLE | DIE_SSTEPBP;
diff --git a/arch/tile/kernel/process.c b/arch/tile/kernel/process.c
index dbb4fa76d1dd..f0a0e18e4dfb 100644
--- a/arch/tile/kernel/process.c
+++ b/arch/tile/kernel/process.c
@@ -15,6 +15,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/preempt.h>
 #include <linux/module.h>
 #include <linux/fs.h>
diff --git a/arch/tile/kernel/ptrace.c b/arch/tile/kernel/ptrace.c
index e279572824b1..e1a078e6828e 100644
--- a/arch/tile/kernel/ptrace.c
+++ b/arch/tile/kernel/ptrace.c
@@ -23,6 +23,8 @@
 #include <linux/elf.h>
 #include <linux/tracehook.h>
 #include <linux/context_tracking.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/traps.h>
 #include <arch/chip.h>
 
diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index 8cc92ae6eb27..f2bf557bb005 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -15,6 +15,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/tile/kernel/stack.c b/arch/tile/kernel/stack.c
index a1c0787fe9d8..94ecbc6676e5 100644
--- a/arch/tile/kernel/stack.c
+++ b/arch/tile/kernel/stack.c
@@ -14,6 +14,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/kprobes.h>
 #include <linux/module.h>
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 2df4e5d11939..31968677a0d0 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -9,6 +9,7 @@
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <asm/current.h>
 #include <asm/processor.h>
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index e76dc7c11251..a9bd61820042 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -19,6 +19,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/seq_file.h>
 #include <linux/tick.h>
 #include <linux/threads.h>
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index 527fa5881915..ddecf326dab2 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -5,6 +5,7 @@
 
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <as-layout.h>
 #include <kern.h>
 #include <os.h>
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index d58f1600b477..d22c1dc7e39e 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -15,6 +15,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
diff --git a/arch/unicore32/kernel/ptrace.c b/arch/unicore32/kernel/ptrace.c
index 9f07c08da050..a102c2b4f358 100644
--- a/arch/unicore32/kernel/ptrace.c
+++ b/arch/unicore32/kernel/ptrace.c
@@ -15,6 +15,7 @@
 #include <linux/ptrace.h>
 #include <linux/signal.h>
 #include <linux/uaccess.h>
+#include <linux/sched/task_stack.h>
 
 /*
  * this routine will get a word off of the processes privileged stack.
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index 506e1a2127c6..5f25b39f04d4 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -16,6 +16,7 @@
 #include <linux/signal.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/spinlock.h>
 #include <linux/personality.h>
 #include <linux/kallsyms.h>
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index b83c61cfd154..370c42c7f046 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -9,6 +9,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 572cee3fccff..226ca70dc6bd 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -7,6 +7,7 @@
 #include <linux/mm.h>
 #include <linux/err.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/random.h>
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 7c0a711989d2..8d0879f1d42c 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -26,6 +26,7 @@
 #include <linux/init.h>
 #include <linux/jiffies.h>
 #include <linux/perf_event.h>
+#include <linux/sched/task_stack.h>
 
 #include <linux/uaccess.h>
 #include <asm/pgalloc.h>
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 95c0b4ae09b0..724153797209 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 7b9e7e68f316..09d4ac0d2661 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -11,6 +11,7 @@
 #include <linux/module.h>
 #include <linux/ptrace.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/ftrace.h>
 #include <linux/kexec.h>
 #include <linux/bug.h>
diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c
index c114b132d121..b188b16841e3 100644
--- a/arch/x86/kernel/fpu/regset.c
+++ b/arch/x86/kernel/fpu/regset.c
@@ -5,6 +5,7 @@
 #include <asm/fpu/signal.h>
 #include <asm/fpu/regset.h>
 #include <asm/fpu/xstate.h>
+#include <linux/sched/task_stack.h>
 
 /*
  * The xstateregs_active() routine is the same as the regset_fpregs_active() routine,
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index b01bc8517450..ca49bab3e467 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -4,6 +4,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/capability.h>
 #include <linux/errno.h>
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 6b0678a541e2..3be74fbdeff2 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -15,6 +15,7 @@
 #include <linux/ftrace.h>
 #include <linux/uaccess.h>
 #include <linux/smp.h>
+#include <linux/sched/task_stack.h>
 #include <asm/io_apic.h>
 #include <asm/apic.h>
 
diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c
index da8cb987b973..587d887f7f17 100644
--- a/arch/x86/kernel/perf_regs.c
+++ b/arch/x86/kernel/perf_regs.c
@@ -1,6 +1,7 @@
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/perf_event.h>
 #include <linux/bug.h>
 #include <linux/stddef.h>
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 441f00e7be8f..56b059486c3b 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -10,6 +10,7 @@
 #include <linux/sched/idle.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/init.h>
 #include <linux/export.h>
 #include <linux/pm.h>
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index d79ffa47aab8..4c818f8bc135 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -13,6 +13,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 124f5652ae3c..d6b784a5520d 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -18,6 +18,7 @@
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 9cc7d5a330ef..2364b23ea3e5 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -6,6 +6,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 763af1d0de64..396c042e9d0e 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -10,6 +10,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index f3eb266d75ff..bd1f1ad35284 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -47,6 +47,7 @@
 #include <linux/sched.h>
 #include <linux/sched/topology.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/percpu.h>
 #include <linux/bootmem.h>
 #include <linux/err.h>
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 330cae0025d0..8e2b79b88e51 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -5,6 +5,7 @@
  */
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 #include <linux/export.h>
 #include <linux/uaccess.h>
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index a23ce84a3f6c..f07f83b3611b 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -2,6 +2,7 @@
  * x86 single-step support code, common to 32-bit and 64-bit.
  */
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/ptrace.h>
 #include <asm/desc.h>
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 1dc86ee60a03..948443e115c1 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -29,6 +29,7 @@
 #include <linux/errno.h>
 #include <linux/kexec.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/timer.h>
 #include <linux/init.h>
 #include <linux/bug.h>
diff --git a/arch/x86/kernel/unwind_frame.c b/arch/x86/kernel/unwind_frame.c
index 7c0abdc9a732..478d15dbaee4 100644
--- a/arch/x86/kernel/unwind_frame.c
+++ b/arch/x86/kernel/unwind_frame.c
@@ -1,5 +1,6 @@
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <asm/ptrace.h>
 #include <asm/bitops.h>
 #include <asm/stacktrace.h>
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 0442d98367ae..23ee89ce59a9 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -35,6 +35,7 @@
 #include <linux/interrupt.h>
 #include <linux/syscalls.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/string.h>
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index e3254ca0eec4..428e31763cb9 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -4,6 +4,7 @@
  *  Copyright (C) 2008-2009, Red Hat Inc., Ingo Molnar
  */
 #include <linux/sched.h>		/* test_thread_flag(), ...	*/
+#include <linux/sched/task_stack.h>	/* task_stack_*(), ...		*/
 #include <linux/kdebug.h>		/* oops_begin/end, ...		*/
 #include <linux/extable.h>		/* search_exception_tables	*/
 #include <linux/bootmem.h>		/* max_low_pfn			*/
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index af33f9d4c624..58f96d1230d4 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -19,6 +19,7 @@
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 32519b71d914..e0f583fed06a 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -20,6 +20,7 @@
 #include <linux/perf_event.h>
 #include <linux/ptrace.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/security.h>
 #include <linux/signal.h>
 #include <linux/smp.h>
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index c41294745731..70a131945443 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -20,6 +20,7 @@
 #include <linux/ptrace.h>
 #include <linux/personality.h>
 #include <linux/tracehook.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/ucontext.h>
 #include <linux/uaccess.h>
diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c
index f2b3e1725349..fd894eaa63f3 100644
--- a/arch/xtensa/kernel/smp.c
+++ b/arch/xtensa/kernel/smp.c
@@ -22,6 +22,7 @@
 #include <linux/kdebug.h>
 #include <linux/module.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/reboot.h>
 #include <linux/seq_file.h>
 #include <linux/smp.h>
diff --git a/block/blk-map.c b/block/blk-map.c
index 2f18c2a0be1b..3b5cb863318f 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -2,6 +2,7 @@
  * Functions related to mapping data to requests
  */
 #include <linux/kernel.h>
+#include <linux/sched/task_stack.h>
 #include <linux/module.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index f7f6b9144b07..da6b59ba5940 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -34,6 +34,8 @@
 #include <linux/kernel_stat.h>
 #include <linux/clockchips.h>
 #include <linux/cpu.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/hyperv.h>
 #include <asm/hypervisor.h>
 #include <asm/mshyperv.h>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index aef00511ca86..74f1b7dc03f7 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -28,6 +28,7 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/sched/task_stack.h>
 #include <linux/delay.h>
 #include <linux/timer.h>
 #include <linux/seq_file.h>
diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
index 9b2fe2d3e3a9..1ec84ca81146 100644
--- a/drivers/md/bcache/closure.h
+++ b/drivers/md/bcache/closure.h
@@ -3,6 +3,7 @@
 
 #include <linux/llist.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/workqueue.h>
 
 /*
diff --git a/drivers/misc/lkdtm_usercopy.c b/drivers/misc/lkdtm_usercopy.c
index 1dd611423d8b..df6ac985fbb5 100644
--- a/drivers/misc/lkdtm_usercopy.c
+++ b/drivers/misc/lkdtm_usercopy.c
@@ -5,6 +5,7 @@
 #include "lkdtm.h"
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mman.h>
 #include <linux/uaccess.h>
 #include <asm/cacheflush.h>
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 6c062b8251d2..d52139635b67 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -20,6 +20,7 @@
  */
 #include <linux/clk.h>
 #include <linux/slab.h>
+#include <linux/sched/task_stack.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/mtd/partitions.h>
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 2a59139f520b..9be82c4e14a4 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -25,6 +25,7 @@
 #include <linux/init.h>
 #include <linux/coredump.h>
 #include <linux/slab.h>
+#include <linux/sched/task_stack.h>
 
 #include <linux/uaccess.h>
 #include <asm/cacheflush.h>
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 2c95257fa4da..92c00a13b28b 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -36,6 +36,7 @@
 #include <linux/coredump.h>
 #include <linux/sched.h>
 #include <linux/sched/coredump.h>
+#include <linux/sched/task_stack.h>
 #include <linux/cred.h>
 #include <linux/dax.h>
 #include <linux/uaccess.h>
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 222873bb689c..6103a8149ccd 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -15,6 +15,8 @@
 #include <linux/fs.h>
 #include <linux/stat.h>
 #include <linux/sched.h>
+#include <linux/sched/coredump.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
 #include <linux/errno.h>
@@ -35,7 +37,6 @@
 #include <linux/elf-fdpic.h>
 #include <linux/elfcore.h>
 #include <linux/coredump.h>
-#include <linux/sched/coredump.h>
 #include <linux/dax.h>
 
 #include <linux/uaccess.h>
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 9b2917a30294..2edcefc0a294 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -19,6 +19,7 @@
 
 #include <linux/kernel.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
 #include <linux/errno.h>
diff --git a/fs/coredump.c b/fs/coredump.c
index c74ab43b8383..592683711c64 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -18,6 +18,7 @@
 #include <linux/coredump.h>
 #include <linux/sched/coredump.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/task_stack.h>
 #include <linux/utsname.h>
 #include <linux/pid_namespace.h>
 #include <linux/module.h>
diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index 698d51a0eea3..c8240a12c42d 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -3,6 +3,8 @@
 
 #include <linux/user.h>
 #include <linux/bug.h>
+#include <linux/sched/task_stack.h>
+
 #include <asm/elf.h>
 #include <uapi/linux/elfcore.h>
 
diff --git a/include/linux/perf_regs.h b/include/linux/perf_regs.h
index a5f98d53d732..9b7dd59fe28d 100644
--- a/include/linux/perf_regs.h
+++ b/include/linux/perf_regs.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_PERF_REGS_H
 #define _LINUX_PERF_REGS_H
 
+#include <linux/sched/task_stack.h>
+
 struct perf_regs {
 	__u64		abi;
 	struct pt_regs	*regs;
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
new file mode 100644
index 000000000000..933cd49824c2
--- /dev/null
+++ b/include/linux/sched/task_stack.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_TASK_STACK_H
+#define _LINUX_SCHED_TASK_STACK_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_TASK_STACK_H */
diff --git a/init/main.c b/init/main.c
index 47956b22add1..c2d337a136d1 100644
--- a/init/main.c
+++ b/init/main.c
@@ -77,6 +77,7 @@
 #include <linux/elevator.h>
 #include <linux/sched_clock.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/context_tracking.h>
 #include <linux/random.h>
 #include <linux/list.h>
diff --git a/kernel/events/callchain.c b/kernel/events/callchain.c
index e9fdb5203de5..c04917cad1bf 100644
--- a/kernel/events/callchain.c
+++ b/kernel/events/callchain.c
@@ -11,6 +11,8 @@
 
 #include <linux/perf_event.h>
 #include <linux/slab.h>
+#include <linux/sched/task_stack.h>
+
 #include "internal.h"
 
 struct callchain_cpus_entries {
diff --git a/kernel/exit.c b/kernel/exit.c
index e53408d156df..771c33fc9952 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -10,6 +10,7 @@
 #include <linux/sched/mm.h>
 #include <linux/sched/stat.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index 0af64d5d8b73..c87b6f03c710 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -19,6 +19,7 @@
 #include <linux/sched/numa_balancing.h>
 #include <linux/sched/stat.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/rtmutex.h>
 #include <linux/init.h>
 #include <linux/unistd.h>
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 3caaaa04b92e..2984fb0f0257 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -47,6 +47,7 @@
 #include <linux/uio.h>
 #include <linux/sched/clock.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/task_stack.h>
 
 #include <linux/uaccess.h>
 #include <asm/sections.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 6b7155ae5c33..4e2fec3f12a0 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -15,6 +15,7 @@
 #include <linux/sched/debug.h>
 #include <linux/sched/hotplug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 
 #include <linux/u64_stats_sync.h>
 #include <linux/kernel_stat.h>
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index e15185c28de5..65f61077ad50 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -18,6 +18,7 @@
 #include <linux/compat.h>
 #include <linux/coredump.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/seccomp.h>
 #include <linux/slab.h>
 #include <linux/syscalls.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index 25d099fd80f7..e6d470a5f75a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -17,6 +17,7 @@
 #include <linux/sched/user.h>
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/fs.h>
 #include <linux/tty.h>
 #include <linux/binfmts.h>
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 2a1abbaca10e..1d68b5b7ad41 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -2,6 +2,7 @@
  * Copyright (C) 2008 Steven Rostedt <srostedt@redhat.com>
  *
  */
+#include <linux/sched/task_stack.h>
 #include <linux/stacktrace.h>
 #include <linux/kallsyms.h>
 #include <linux/seq_file.h>
diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index 8c28cbd7e104..17afb0430161 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -13,6 +13,7 @@
 #include <linux/debugobjects.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>
 #include <linux/slab.h>
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 942adf13418d..b157b46cc9a6 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -17,6 +17,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#include <linux/sched/task_stack.h>
 #include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
 #include <linux/sched/task.h>
diff --git a/lib/syscall.c b/lib/syscall.c
index 63239e097b13..17d5ff5fa6a3 100644
--- a/lib/syscall.c
+++ b/lib/syscall.c
@@ -1,5 +1,6 @@
 #include <linux/ptrace.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/export.h>
 #include <asm/syscall.h>
 
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
index d99312ed7c22..98b27195e38b 100644
--- a/mm/kasan/kasan.c
+++ b/mm/kasan/kasan.c
@@ -29,6 +29,7 @@
 #include <linux/module.h>
 #include <linux/printk.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/slab.h>
 #include <linux/stacktrace.h>
 #include <linux/string.h>
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index a3970573359e..26c874e90b12 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -75,6 +75,7 @@
 #include <linux/list.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
 #include <linux/jiffies.h>
 #include <linux/delay.h>
 #include <linux/export.h>
diff --git a/mm/util.c b/mm/util.c
index 14f4e13323e2..656dc5e37a87 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -6,6 +6,7 @@
 #include <linux/err.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/task_stack.h>
 #include <linux/security.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
-- 
cgit 


From 32ef5517c298042ed58408545f475df43afe1f24 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Sun, 5 Feb 2017 11:48:36 +0100
Subject: sched/headers: Prepare to move cputime functionality from
 <linux/sched.h> into <linux/sched/cputime.h>

Introduce a trivial, mostly empty <linux/sched/cputime.h> header
to prepare for the moving of cputime functionality out of sched.h.

Update all code that relies on these facilities.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/alpha/kernel/osf_sys.c    | 1 +
 arch/ia64/kernel/time.c        | 2 +-
 arch/powerpc/kernel/time.c     | 2 +-
 arch/s390/kernel/idle.c        | 2 +-
 arch/s390/kernel/vtime.c       | 2 +-
 arch/x86/kernel/apm_32.c       | 1 +
 arch/x86/kvm/hyperv.c          | 2 ++
 drivers/isdn/mISDN/stack.c     | 1 +
 drivers/s390/cio/cio.c         | 2 +-
 fs/binfmt_elf.c                | 1 +
 fs/binfmt_elf_fdpic.c          | 1 +
 fs/proc/array.c                | 1 +
 fs/proc/stat.c                 | 2 +-
 include/linux/sched/cputime.h  | 7 +++++++
 kernel/acct.c                  | 2 ++
 kernel/delayacct.c             | 1 +
 kernel/exit.c                  | 1 +
 kernel/fork.c                  | 1 +
 kernel/sched/cputime.c         | 2 +-
 kernel/sched/sched.h           | 1 +
 kernel/signal.c                | 1 +
 kernel/sys.c                   | 1 +
 kernel/time/itimer.c           | 1 +
 kernel/time/posix-cpu-timers.c | 1 +
 kernel/tsacct.c                | 1 +
 25 files changed, 33 insertions(+), 7 deletions(-)
 create mode 100644 include/linux/sched/cputime.h

(limited to 'kernel/exit.c')

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 73446baa632e..0b961093ca5c 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -14,6 +14,7 @@
 #include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index 144f9db7a876..aa7be020a904 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -22,7 +22,7 @@
 #include <linux/timex.h>
 #include <linux/timekeeper_internal.h>
 #include <linux/platform_device.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
 
 #include <asm/machvec.h>
 #include <asm/delay.h>
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 37833c5dc274..07b90725855e 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -58,7 +58,7 @@
 #include <linux/clk-provider.h>
 #include <linux/suspend.h>
 #include <linux/rtc.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
 #include <asm/trace.h>
 
 #include <asm/io.h>
diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c
index fb07a70820af..9340b2a07935 100644
--- a/arch/s390/kernel/idle.c
+++ b/arch/s390/kernel/idle.c
@@ -12,7 +12,7 @@
 #include <linux/notifier.h>
 #include <linux/init.h>
 #include <linux/cpu.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
 #include <asm/nmi.h>
 #include <asm/smp.h>
 #include "entry.h"
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 31bd96e81167..c14fc9029912 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -6,7 +6,7 @@
  */
 
 #include <linux/kernel_stat.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
 #include <linux/export.h>
 #include <linux/kernel.h>
 #include <linux/timex.h>
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index dc04b30cbd60..5a414545e8a3 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -219,6 +219,7 @@
 #include <linux/init.h>
 #include <linux/time.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/cputime.h>
 #include <linux/pm.h>
 #include <linux/capability.h>
 #include <linux/device.h>
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index f701d4430727..ebae57ac5902 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -28,6 +28,8 @@
 
 #include <linux/kvm_host.h>
 #include <linux/highmem.h>
+#include <linux/sched/cputime.h>
+
 #include <asm/apicdef.h>
 #include <trace/events/kvm.h>
 
diff --git a/drivers/isdn/mISDN/stack.c b/drivers/isdn/mISDN/stack.c
index 696f22fd5ab4..8b7faea2ddf8 100644
--- a/drivers/isdn/mISDN/stack.c
+++ b/drivers/isdn/mISDN/stack.c
@@ -19,6 +19,7 @@
 #include <linux/mISDNif.h>
 #include <linux/kthread.h>
 #include <linux/sched.h>
+#include <linux/sched/cputime.h>
 #include <linux/signal.h>
 
 #include "core.h"
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index de6fccc13124..1b350665c823 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -29,7 +29,7 @@
 #include <asm/chpid.h>
 #include <asm/airq.h>
 #include <asm/isc.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
 #include <asm/fcx.h>
 #include <asm/nmi.h>
 #include <asm/crw.h>
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 92c00a13b28b..5075fd5c62c8 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -37,6 +37,7 @@
 #include <linux/sched.h>
 #include <linux/sched/coredump.h>
 #include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
 #include <linux/cred.h>
 #include <linux/dax.h>
 #include <linux/uaccess.h>
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 6103a8149ccd..cf93a4fad012 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -17,6 +17,7 @@
 #include <linux/sched.h>
 #include <linux/sched/coredump.h>
 #include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
 #include <linux/errno.h>
diff --git a/fs/proc/array.c b/fs/proc/array.c
index f3169b58af38..88c355574aa0 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -63,6 +63,7 @@
 #include <linux/sched/mm.h>
 #include <linux/sched/numa_balancing.h>
 #include <linux/sched/task.h>
+#include <linux/sched/cputime.h>
 #include <linux/proc_fs.h>
 #include <linux/ioport.h>
 #include <linux/uaccess.h>
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index b95556e036bb..bd4e55f4aa20 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -10,7 +10,7 @@
 #include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/irqnr.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
 #include <linux/tick.h>
 
 #ifndef arch_irq_stat_cpu
diff --git a/include/linux/sched/cputime.h b/include/linux/sched/cputime.h
new file mode 100644
index 000000000000..6ed4fe43de28
--- /dev/null
+++ b/include/linux/sched/cputime.h
@@ -0,0 +1,7 @@
+#ifndef _LINUX_SCHED_CPUTIME_H
+#define _LINUX_SCHED_CPUTIME_H
+
+#include <linux/sched/signal.h>
+#include <linux/cputime.h>
+
+#endif /* _LINUX_SCHED_CPUTIME_H */
diff --git a/kernel/acct.c b/kernel/acct.c
index ca9cb55b5855..5b1284370367 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -56,6 +56,8 @@
 #include <linux/syscalls.h>
 #include <linux/mount.h>
 #include <linux/uaccess.h>
+#include <linux/sched/cputime.h>
+
 #include <asm/div64.h>
 #include <linux/blkdev.h> /* sector_div */
 #include <linux/pid_namespace.h>
diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index c94135fc2698..4a1c33416b6a 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -15,6 +15,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/task.h>
+#include <linux/sched/cputime.h>
 #include <linux/slab.h>
 #include <linux/taskstats.h>
 #include <linux/time.h>
diff --git a/kernel/exit.c b/kernel/exit.c
index 771c33fc9952..e126ebf2400c 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -11,6 +11,7 @@
 #include <linux/sched/stat.h>
 #include <linux/sched/task.h>
 #include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/capability.h>
diff --git a/kernel/fork.c b/kernel/fork.c
index c87b6f03c710..916e78004b8f 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -20,6 +20,7 @@
 #include <linux/sched/stat.h>
 #include <linux/sched/task.h>
 #include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
 #include <linux/rtmutex.h>
 #include <linux/init.h>
 #include <linux/unistd.h>
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 54031fa681e2..f3778e2b46c8 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -4,7 +4,7 @@
 #include <linux/kernel_stat.h>
 #include <linux/static_key.h>
 #include <linux/context_tracking.h>
-#include <linux/cputime.h>
+#include <linux/sched/cputime.h>
 #include "sched.h"
 
 #ifdef CONFIG_IRQ_TIME_ACCOUNTING
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index b1f1c8443837..76e3af3f39f4 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -17,6 +17,7 @@
 #include <linux/sched/hotplug.h>
 #include <linux/sched/task.h>
 #include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
 
 #include <linux/u64_stats_sync.h>
 #include <linux/kernel_stat.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index 2008aa999976..7e59ebc2c25e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -18,6 +18,7 @@
 #include <linux/sched/debug.h>
 #include <linux/sched/task.h>
 #include <linux/sched/task_stack.h>
+#include <linux/sched/cputime.h>
 #include <linux/fs.h>
 #include <linux/tty.h>
 #include <linux/binfmts.h>
diff --git a/kernel/sys.c b/kernel/sys.c
index 7f1ecd2e41c1..7ff6d1b10cec 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -55,6 +55,7 @@
 #include <linux/sched/mm.h>
 #include <linux/sched/coredump.h>
 #include <linux/sched/task.h>
+#include <linux/sched/cputime.h>
 #include <linux/rcupdate.h>
 #include <linux/uidgid.h>
 #include <linux/cred.h>
diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c
index f6b961c5e58c..087d6a1279b8 100644
--- a/kernel/time/itimer.c
+++ b/kernel/time/itimer.c
@@ -11,6 +11,7 @@
 #include <linux/syscalls.h>
 #include <linux/time.h>
 #include <linux/sched/signal.h>
+#include <linux/sched/cputime.h>
 #include <linux/posix-timers.h>
 #include <linux/hrtimer.h>
 #include <trace/events/timer.h>
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index a2475a9f57d8..4513ad16a253 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -3,6 +3,7 @@
  */
 
 #include <linux/sched/signal.h>
+#include <linux/sched/cputime.h>
 #include <linux/posix-timers.h>
 #include <linux/errno.h>
 #include <linux/math64.h>
diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index d9a03b80b75d..370724b45391 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -19,6 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/cputime.h>
 #include <linux/tsacct_kern.h>
 #include <linux/acct.h>
 #include <linux/jiffies.h>
-- 
cgit 


From dd0db88d8094a6d9d4d1fc5fcd56ab619f54ccf8 Mon Sep 17 00:00:00 2001
From: Andrea Arcangeli <aarcange@redhat.com>
Date: Thu, 9 Mar 2017 16:16:49 -0800
Subject: userfaultfd: non-cooperative: rollback userfaultfd_exit

Patch series "userfaultfd non-cooperative further update for 4.11 merge
window".

Unfortunately I noticed one relevant bug in userfaultfd_exit while doing
more testing.  I've been doing testing before and this was also tested
by kbuild bot and exercised by the selftest, but this bug never
reproduced before.

I dropped userfaultfd_exit as result.  I dropped it because of
implementation difficulty in receiving signals in __mmput and because I
think -ENOSPC as result from the background UFFDIO_COPY should be enough
already.

Before I decided to remove userfaultfd_exit, I noticed userfaultfd_exit
wasn't exercised by the selftest and when I tried to exercise it, after
moving it to a more correct place in __mmput where it would make more
sense and where the vma list is stable, it resulted in the
event_wait_completion in D state.  So then I added the second patch to
be sure even if we call userfaultfd_event_wait_completion too late
during task exit(), we won't risk to generate tasks in D state.  The
same check exists in handle_userfault() for the same reason, except it
makes a difference there, while here is just a robustness check and it's
run under WARN_ON_ONCE.

While looking at the userfaultfd_event_wait_completion() function I
looked back at its callers too while at it and I think it's not ok to
stop executing dup_fctx on the fcs list because we relay on
userfaultfd_event_wait_completion to execute
userfaultfd_ctx_put(fctx->orig) which is paired against
userfaultfd_ctx_get(fctx->orig) in dup_userfault just before
list_add(fcs).  This change only takes care of fctx->orig but this area
also needs further review looking for similar problems in fctx->new.

The only patch that is urgent is the first because it's an use after
free during a SMP race condition that affects all processes if
CONFIG_USERFAULTFD=y.  Very hard to reproduce though and probably
impossible without SLUB poisoning enabled.

This patch (of 3):

I once reproduced this oops with the userfaultfd selftest, it's not
easily reproducible and it requires SLUB poisoning to reproduce.

    general protection fault: 0000 [#1] SMP
    Modules linked in:
    CPU: 2 PID: 18421 Comm: userfaultfd Tainted: G               ------------ T 3.10.0+ #15
    Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.10.1-0-g8891697-prebuilt.qemu-project.org 04/01/2014
    task: ffff8801f83b9440 ti: ffff8801f833c000 task.ti: ffff8801f833c000
    RIP: 0010:[<ffffffff81451299>]  [<ffffffff81451299>] userfaultfd_exit+0x29/0xa0
    RSP: 0018:ffff8801f833fe80  EFLAGS: 00010202
    RAX: ffff8801f833ffd8 RBX: 6b6b6b6b6b6b6b6b RCX: ffff8801f83b9440
    RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8800baf18600
    RBP: ffff8801f833fee8 R08: 0000000000000000 R09: 0000000000000001
    R10: 0000000000000000 R11: ffffffff8127ceb3 R12: 0000000000000000
    R13: ffff8800baf186b0 R14: ffff8801f83b99f8 R15: 00007faed746c700
    FS:  0000000000000000(0000) GS:ffff88023fc80000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
    CR2: 00007faf0966f028 CR3: 0000000001bc6000 CR4: 00000000000006e0
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    Call Trace:
      do_exit+0x297/0xd10
      SyS_exit+0x17/0x20
      tracesys+0xdd/0xe2
    Code: 00 00 66 66 66 66 90 55 48 89 e5 41 54 53 48 83 ec 58 48 8b 1f 48 85 db 75 11 eb 73 66 0f 1f 44 00 00 48 8b 5b 10 48 85 db 74 64 <4c> 8b a3 b8 00 00 00 4d 85 e4 74 eb 41 f6 84 24 2c 01 00 00 80
    RIP  [<ffffffff81451299>] userfaultfd_exit+0x29/0xa0
     RSP <ffff8801f833fe80>
    ---[ end trace 9fecd6dcb442846a ]---

In the debugger I located the "mm" pointer in the stack and walking
mm->mmap->vm_next through the end shows the vma->vm_next list is fully
consistent and it is null terminated list as expected.  So this has to
be an SMP race condition where userfaultfd_exit was running while the
vma list was being modified by another CPU.

When userfaultfd_exit() run one of the ->vm_next pointers pointed to
SLAB_POISON (RBX is the vma pointer and is 0x6b6b..).

The reason is that it's not running in __mmput but while there are still
other threads running and it's not holding the mmap_sem (it can't as it
has to wait the even to be received by the manager).  So this is an use
after free that was happening for all processes.

One more implementation problem aside from the race condition:
userfaultfd_exit has really to check a flag in mm->flags before walking
the vma or it's going to slowdown the exit() path for regular tasks.

One more implementation problem: at that point signals can't be
delivered so it would also create a task in D state if the manager
doesn't read the event.

The major design issue: it overall looks superfluous as the manager can
check for -ENOSPC in the background transfer:

	if (mmget_not_zero(ctx->mm)) {
[..]
	} else {
		return -ENOSPC;
	}

It's safer to roll it back and re-introduce it later if at all.

[rppt@linux.vnet.ibm.com: documentation fixup after removal of UFFD_EVENT_EXIT]
  Link: http://lkml.kernel.org/r/1488345437-4364-1-git-send-email-rppt@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/20170224181957.19736-2-aarcange@redhat.com
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/vm/userfaultfd.txt |  4 ----
 fs/userfaultfd.c                 | 28 ----------------------------
 include/linux/userfaultfd_k.h    |  6 ------
 include/uapi/linux/userfaultfd.h |  5 +----
 kernel/exit.c                    |  1 -
 5 files changed, 1 insertion(+), 43 deletions(-)

(limited to 'kernel/exit.c')

diff --git a/Documentation/vm/userfaultfd.txt b/Documentation/vm/userfaultfd.txt
index 0e5543a920e5..bb2f945f87ab 100644
--- a/Documentation/vm/userfaultfd.txt
+++ b/Documentation/vm/userfaultfd.txt
@@ -172,10 +172,6 @@ the same read(2) protocol as for the page fault notifications. The
 manager has to explicitly enable these events by setting appropriate
 bits in uffdio_api.features passed to UFFDIO_API ioctl:
 
-UFFD_FEATURE_EVENT_EXIT - enable notification about exit() of the
-non-cooperative process. When the monitored process exits, the uffd
-manager will get UFFD_EVENT_EXIT.
-
 UFFD_FEATURE_EVENT_FORK - enable userfaultfd hooks for fork(). When
 this feature is enabled, the userfaultfd context of the parent process
 is duplicated into the newly created process. The manager receives
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index f62199b90fd0..16d0cc600fa9 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -775,34 +775,6 @@ void userfaultfd_unmap_complete(struct mm_struct *mm, struct list_head *uf)
 	}
 }
 
-void userfaultfd_exit(struct mm_struct *mm)
-{
-	struct vm_area_struct *vma = mm->mmap;
-
-	/*
-	 * We can do the vma walk without locking because the caller
-	 * (exit_mm) knows it now has exclusive access
-	 */
-	while (vma) {
-		struct userfaultfd_ctx *ctx = vma->vm_userfaultfd_ctx.ctx;
-
-		if (ctx && (ctx->features & UFFD_FEATURE_EVENT_EXIT)) {
-			struct userfaultfd_wait_queue ewq;
-
-			userfaultfd_ctx_get(ctx);
-
-			msg_init(&ewq.msg);
-			ewq.msg.event = UFFD_EVENT_EXIT;
-
-			userfaultfd_event_wait_completion(ctx, &ewq);
-
-			ctx->features &= ~UFFD_FEATURE_EVENT_EXIT;
-		}
-
-		vma = vma->vm_next;
-	}
-}
-
 static int userfaultfd_release(struct inode *inode, struct file *file)
 {
 	struct userfaultfd_ctx *ctx = file->private_data;
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h
index 0468548acebf..f2b79bf4c895 100644
--- a/include/linux/userfaultfd_k.h
+++ b/include/linux/userfaultfd_k.h
@@ -72,8 +72,6 @@ extern int userfaultfd_unmap_prep(struct vm_area_struct *vma,
 extern void userfaultfd_unmap_complete(struct mm_struct *mm,
 				       struct list_head *uf);
 
-extern void userfaultfd_exit(struct mm_struct *mm);
-
 #else /* CONFIG_USERFAULTFD */
 
 /* mm helpers */
@@ -139,10 +137,6 @@ static inline void userfaultfd_unmap_complete(struct mm_struct *mm,
 {
 }
 
-static inline void userfaultfd_exit(struct mm_struct *mm)
-{
-}
-
 #endif /* CONFIG_USERFAULTFD */
 
 #endif /* _LINUX_USERFAULTFD_K_H */
diff --git a/include/uapi/linux/userfaultfd.h b/include/uapi/linux/userfaultfd.h
index c055947c5c98..3b059530dac9 100644
--- a/include/uapi/linux/userfaultfd.h
+++ b/include/uapi/linux/userfaultfd.h
@@ -18,8 +18,7 @@
  * means the userland is reading).
  */
 #define UFFD_API ((__u64)0xAA)
-#define UFFD_API_FEATURES (UFFD_FEATURE_EVENT_EXIT |		\
-			   UFFD_FEATURE_EVENT_FORK |		\
+#define UFFD_API_FEATURES (UFFD_FEATURE_EVENT_FORK |		\
 			   UFFD_FEATURE_EVENT_REMAP |		\
 			   UFFD_FEATURE_EVENT_REMOVE |	\
 			   UFFD_FEATURE_EVENT_UNMAP |		\
@@ -113,7 +112,6 @@ struct uffd_msg {
 #define UFFD_EVENT_REMAP	0x14
 #define UFFD_EVENT_REMOVE	0x15
 #define UFFD_EVENT_UNMAP	0x16
-#define UFFD_EVENT_EXIT		0x17
 
 /* flags for UFFD_EVENT_PAGEFAULT */
 #define UFFD_PAGEFAULT_FLAG_WRITE	(1<<0)	/* If this was a write fault */
@@ -163,7 +161,6 @@ struct uffdio_api {
 #define UFFD_FEATURE_MISSING_HUGETLBFS		(1<<4)
 #define UFFD_FEATURE_MISSING_SHMEM		(1<<5)
 #define UFFD_FEATURE_EVENT_UNMAP		(1<<6)
-#define UFFD_FEATURE_EVENT_EXIT			(1<<7)
 	__u64 features;
 
 	__u64 ioctls;
diff --git a/kernel/exit.c b/kernel/exit.c
index e126ebf2400c..516acdb0e0ec 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -554,7 +554,6 @@ static void exit_mm(void)
 	enter_lazy_tlb(mm, current);
 	task_unlock(current);
 	mm_update_next_owner(mm);
-	userfaultfd_exit(mm);
 	mmput(mm);
 	if (test_thread_flag(TIF_MEMDIE))
 		exit_oom_victim();
-- 
cgit