diff options
Diffstat (limited to 'arch/s390')
40 files changed, 100 insertions, 32 deletions
diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c index 5a8dfa22da7c..ef3fb1b9201f 100644 --- a/arch/s390/appldata/appldata_base.c +++ b/arch/s390/appldata/appldata_base.c @@ -12,6 +12,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/module.h> +#include <linux/sched/stat.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/errno.h> diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c index 08b9e942a262..45b3178200ab 100644 --- a/arch/s390/appldata/appldata_os.c +++ b/arch/s390/appldata/appldata_os.c @@ -17,6 +17,8 @@ #include <linux/kernel_stat.h> #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/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c index d69ea495c4d7..716b17238599 100644 --- a/arch/s390/crypto/paes_s390.c +++ b/arch/s390/crypto/paes_s390.c @@ -474,8 +474,11 @@ static int ctr_paes_crypt(struct blkcipher_desc *desc, unsigned long modifier, ret = blkcipher_walk_done(desc, walk, nbytes - n); } if (k < n) { - if (__ctr_paes_set_key(ctx) != 0) + if (__ctr_paes_set_key(ctx) != 0) { + if (locked) + spin_unlock(&ctrblk_lock); return blkcipher_walk_done(desc, walk, -EIO); + } } } if (locked) diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c index 85b7f5efe06a..5a3ec04a7082 100644 --- a/arch/s390/crypto/prng.c +++ b/arch/s390/crypto/prng.c @@ -20,6 +20,8 @@ #include <linux/cpufeature.h> #include <linux/random.h> #include <linux/slab.h> +#include <linux/sched/signal.h> + #include <asm/debug.h> #include <linux/uaccess.h> #include <asm/timex.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/cputime.h b/arch/s390/include/asm/cputime.h index d1c407ddf703..9072bf63a846 100644 --- a/arch/s390/include/asm/cputime.h +++ b/arch/s390/include/asm/cputime.h @@ -8,31 +8,27 @@ #define _S390_CPUTIME_H #include <linux/types.h> -#include <asm/div64.h> +#include <asm/timex.h> #define CPUTIME_PER_USEC 4096ULL #define CPUTIME_PER_SEC (CPUTIME_PER_USEC * USEC_PER_SEC) /* We want to use full resolution of the CPU timer: 2**-12 micro-seconds. */ -typedef unsigned long long __nocast cputime_t; -typedef unsigned long long __nocast cputime64_t; - #define cmpxchg_cputime(ptr, old, new) cmpxchg64(ptr, old, new) -static inline unsigned long __div(unsigned long long n, unsigned long base) -{ - return n / base; -} - /* - * Convert cputime to microseconds and back. + * Convert cputime to microseconds. */ -static inline unsigned int cputime_to_usecs(const cputime_t cputime) +static inline u64 cputime_to_usecs(const u64 cputime) { - return (__force unsigned long long) cputime >> 12; + return cputime >> 12; } +/* + * Convert cputime to nanoseconds. + */ +#define cputime_to_nsecs(cputime) tod_to_ns(cputime) u64 arch_cpu_idle_time(int cpu); diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index 83aaefed2a7b..1d48880b3cc1 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -132,7 +132,7 @@ typedef s390_fp_regs compat_elf_fpregset_t; typedef s390_compat_regs compat_elf_gregset_t; #include <linux/compat.h> -#include <linux/sched.h> /* for task_struct */ +#include <linux/sched/mm.h> /* for task_struct */ #include <asm/mmu_context.h> #include <asm/vdso.h> 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/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 9b828c073176..6e31d87fb669 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -9,6 +9,7 @@ #include <asm/pgalloc.h> #include <linux/uaccess.h> +#include <linux/mm_types.h> #include <asm/tlbflush.h> #include <asm/ctl_reg.h> diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 7ed1972b1920..93e37b12e882 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -24,6 +24,7 @@ * the S390 page table tree. */ #ifndef __ASSEMBLY__ +#include <asm-generic/5level-fixup.h> #include <linux/sched.h> #include <linux/mm_types.h> #include <linux/page-flags.h> diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index 354344dcc198..118535123f34 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -206,20 +206,16 @@ static inline unsigned long long get_tod_clock_monotonic(void) * ns = (todval * 125) >> 9; * * In order to avoid an overflow with the multiplication we can rewrite this. - * With a split todval == 2^32 * th + tl (th upper 32 bits, tl lower 32 bits) + * With a split todval == 2^9 * th + tl (th upper 55 bits, tl lower 9 bits) * we end up with * - * ns = ((2^32 * th + tl) * 125 ) >> 9; - * -> ns = (2^23 * th * 125) + ((tl * 125) >> 9); + * ns = ((2^9 * th + tl) * 125 ) >> 9; + * -> ns = (th * 125) + ((tl * 125) >> 9); * */ static inline unsigned long long tod_to_ns(unsigned long long todval) { - unsigned long long ns; - - ns = ((todval >> 32) << 23) * 125; - ns += ((todval & 0xffffffff) * 125) >> 9; - return ns; + return ((todval >> 9) * 125) + (((todval & 0x1ff) * 125) >> 9); } #endif diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h index 4384bc797a54..152de9b796e1 100644 --- a/arch/s390/include/uapi/asm/unistd.h +++ b/arch/s390/include/uapi/asm/unistd.h @@ -313,7 +313,9 @@ #define __NR_copy_file_range 375 #define __NR_preadv2 376 #define __NR_pwritev2 377 -#define NR_syscalls 378 +/* Number 378 is reserved for guarded storage */ +#define __NR_statx 379 +#define NR_syscalls 380 /* * There are some system calls that are not present on 64 bit, some 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/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c index ae2cda5eee5a..e89cc2e71db1 100644 --- a/arch/s390/kernel/compat_wrapper.c +++ b/arch/s390/kernel/compat_wrapper.c @@ -178,3 +178,4 @@ COMPAT_SYSCALL_WRAP3(getpeername, int, fd, struct sockaddr __user *, usockaddr, COMPAT_SYSCALL_WRAP6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len); COMPAT_SYSCALL_WRAP3(mlock2, unsigned long, start, size_t, len, int, flags); COMPAT_SYSCALL_WRAP6(copy_file_range, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags); +COMPAT_SYSCALL_WRAP5(statx, int, dfd, const char __user *, path, unsigned, flags, unsigned, mask, struct statx __user *, buffer); diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c index 55d4fe174fd9..829e1c53005c 100644 --- a/arch/s390/kernel/dumpstack.c +++ b/arch/s390/kernel/dumpstack.c @@ -14,6 +14,8 @@ #include <linux/mm.h> #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/entry.S b/arch/s390/kernel/entry.S index dff2152350a7..6a7d737d514c 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -490,7 +490,7 @@ ENTRY(pgm_check_handler) jnz .Lpgm_svcper # -> single stepped svc 1: CHECK_STACK STACK_SIZE,__LC_SAVE_AREA_SYNC aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) - j 3f + j 4f 2: UPDATE_VTIME %r14,%r15,__LC_SYNC_ENTER_TIMER lg %r15,__LC_KERNEL_STACK lgr %r14,%r12 @@ -499,8 +499,8 @@ ENTRY(pgm_check_handler) tm __LC_PGM_ILC+2,0x02 # check for transaction abort jz 3f mvc __THREAD_trap_tdb(256,%r14),0(%r13) -3: la %r11,STACK_FRAME_OVERHEAD(%r15) - stg %r10,__THREAD_last_break(%r14) +3: stg %r10,__THREAD_last_break(%r14) +4: la %r11,STACK_FRAME_OVERHEAD(%r15) stmg %r0,%r7,__PT_R0(%r11) mvc __PT_R8(64,%r11),__LC_SAVE_AREA_SYNC stmg %r8,%r9,__PT_PSW(%r11) @@ -509,14 +509,14 @@ ENTRY(pgm_check_handler) xc __PT_FLAGS(8,%r11),__PT_FLAGS(%r11) stg %r10,__PT_ARGS(%r11) tm __LC_PGM_ILC+3,0x80 # check for per exception - jz 4f + jz 5f tmhh %r8,0x0001 # kernel per event ? jz .Lpgm_kprobe oi __PT_FLAGS+7(%r11),_PIF_PER_TRAP mvc __THREAD_per_address(8,%r14),__LC_PER_ADDRESS mvc __THREAD_per_cause(2,%r14),__LC_PER_CODE mvc __THREAD_per_paid(1,%r14),__LC_PER_ACCESS_ID -4: REENABLE_IRQS +5: REENABLE_IRQS xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) larl %r1,pgm_check_table llgh %r10,__PT_INT_CODE+2(%r11) 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/ipl.c b/arch/s390/kernel/ipl.c index b67dafb7b7cf..e545ffe5155a 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -564,6 +564,8 @@ static struct kset *ipl_kset; static void __ipl_run(void *unused) { + if (MACHINE_IS_LPAR && ipl_info.type == IPL_TYPE_CCW) + diag308(DIAG308_LOAD_NORMAL_DUMP, NULL); diag308(DIAG308_LOAD_CLEAR, NULL); if (MACHINE_IS_VM) __cpcmd("IPL", NULL, 0, NULL); diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c index 80c093e0c6f1..9bf8327154ee 100644 --- a/arch/s390/kernel/nmi.c +++ b/arch/s390/kernel/nmi.c @@ -13,6 +13,9 @@ #include <linux/errno.h> #include <linux/hardirq.h> #include <linux/time.h> +#include <linux/module.h> +#include <linux/sched/signal.h> + #include <linux/export.h> #include <asm/lowcore.h> #include <asm/smp.h> diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 54281660582c..f29e41c5e2ec 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -11,6 +11,9 @@ #include <linux/compiler.h> #include <linux/cpu.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/mm.h> #include <linux/elfcore.h> @@ -121,7 +124,10 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long new_stackp, clear_tsk_thread_flag(p, TIF_SINGLE_STEP); /* Initialize per thread user and system timer values */ p->thread.user_timer = 0; + p->thread.guest_timer = 0; p->thread.system_timer = 0; + p->thread.hardirq_timer = 0; + p->thread.softirq_timer = 0; frame->sf.back_chain = 0; /* new return point is ret_from_fork */ diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index bc2b60dcb178..928b929a6261 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -8,10 +8,13 @@ #include <linux/cpufeature.h> #include <linux/kernel.h> +#include <linux/sched/mm.h> #include <linux/init.h> #include <linux/seq_file.h> +#include <linux/mm_types.h> #include <linux/delay.h> #include <linux/cpu.h> + #include <asm/diag.h> #include <asm/facility.h> #include <asm/elf.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/setup.c b/arch/s390/kernel/setup.c index e4d811f17971..911dc0b49be0 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -18,6 +18,8 @@ #include <linux/errno.h> #include <linux/export.h> #include <linux/sched.h> +#include <linux/sched/task.h> +#include <linux/cpu.h> #include <linux/kernel.h> #include <linux/memblock.h> #include <linux/mm.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 d0a74d7ce433..47a973b5b4f1 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -31,6 +31,8 @@ #include <linux/irqflags.h> #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/stacktrace.c b/arch/s390/kernel/stacktrace.c index 0085b2d8ed7d..e66687dc6144 100644 --- a/arch/s390/kernel/stacktrace.c +++ b/arch/s390/kernel/stacktrace.c @@ -6,6 +6,7 @@ */ #include <linux/sched.h> +#include <linux/sched/debug.h> #include <linux/stacktrace.h> #include <linux/kallsyms.h> #include <linux/export.h> diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 9b59e6212d8f..2659b5cfeddb 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -386,3 +386,5 @@ SYSCALL(sys_mlock2,compat_sys_mlock2) SYSCALL(sys_copy_file_range,compat_sys_copy_file_range) /* 375 */ SYSCALL(sys_preadv2,compat_sys_preadv2) SYSCALL(sys_pwritev2,compat_sys_pwritev2) +NI_SYSCALL +SYSCALL(sys_statx,compat_sys_statx) diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index de66abb479c9..c31da46bc037 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -18,6 +18,7 @@ #include <linux/errno.h> #include <linux/export.h> #include <linux/sched.h> +#include <linux/sched/clock.h> #include <linux/kernel.h> #include <linux/param.h> #include <linux/string.h> diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 2cd5f4f1013c..17660e800e74 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -13,6 +13,7 @@ #include <linux/export.h> #include <linux/kernel.h> #include <linux/sched.h> +#include <linux/sched/topology.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/slab.h> diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 283ad7840335..f787b9d8f54c 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -17,6 +17,7 @@ #include <linux/extable.h> #include <linux/ptrace.h> #include <linux/sched.h> +#include <linux/sched/debug.h> #include <linux/mm.h> #include <linux/slab.h> #include <linux/uaccess.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/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index 31bd96e81167..072d84ba42a3 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> @@ -111,7 +111,7 @@ static inline u64 scale_vtime(u64 vtime) } static void account_system_index_scaled(struct task_struct *p, - cputime_t cputime, cputime_t scaled, + u64 cputime, u64 scaled, enum cpu_usage_stat index) { p->stimescaled += cputime_to_nsecs(scaled); diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c index 4492c9363178..d55c829a5944 100644 --- a/arch/s390/kvm/gaccess.c +++ b/arch/s390/kvm/gaccess.c @@ -6,7 +6,9 @@ */ #include <linux/vmalloc.h> +#include <linux/mm_types.h> #include <linux/err.h> + #include <asm/pgtable.h> #include <asm/gmap.h> #include "kvm-s390.h" diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index f5694838234d..fd6cd05bb6a7 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -29,6 +29,8 @@ #include <linux/timer.h> #include <linux/vmalloc.h> #include <linux/bitmap.h> +#include <linux/sched/signal.h> + #include <asm/asm-offsets.h> #include <asm/lowcore.h> #include <asm/stp.h> diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index fb4b494cde9b..64b6a309f2c4 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -15,6 +15,8 @@ #include <linux/gfp.h> #include <linux/errno.h> #include <linux/compat.h> +#include <linux/mm_types.h> + #include <asm/asm-offsets.h> #include <asm/facility.h> #include <asm/current.h> diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c index 38556e395915..5491be39776b 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -14,6 +14,8 @@ #include <linux/bug.h> #include <linux/list.h> #include <linux/bitmap.h> +#include <linux/sched/signal.h> + #include <asm/gmap.h> #include <asm/mmu_context.h> #include <asm/sclp.h> diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index bb5560eb2435..5845d3028ffc 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -12,6 +12,7 @@ #include <linux/perf_event.h> #include <linux/signal.h> #include <linux/sched.h> +#include <linux/sched/debug.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/string.h> diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c index 7ae1282d5be9..50618614881f 100644 --- a/arch/s390/mm/mmap.c +++ b/arch/s390/mm/mmap.c @@ -26,6 +26,8 @@ #include <linux/personality.h> #include <linux/mm.h> #include <linux/mman.h> +#include <linux/sched/signal.h> +#include <linux/sched/mm.h> #include <linux/random.h> #include <linux/compat.h> #include <linux/security.h> diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index b48dc5f1900b..463e5ef02304 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -608,12 +608,29 @@ void ptep_zap_key(struct mm_struct *mm, unsigned long addr, pte_t *ptep) bool test_and_clear_guest_dirty(struct mm_struct *mm, unsigned long addr) { spinlock_t *ptl; + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; pgste_t pgste; pte_t *ptep; pte_t pte; bool dirty; - ptep = get_locked_pte(mm, addr, &ptl); + pgd = pgd_offset(mm, addr); + pud = pud_alloc(mm, pgd, addr); + if (!pud) + return false; + pmd = pmd_alloc(mm, pud, addr); + if (!pmd) + return false; + /* We can't run guests backed by huge pages, but userspace can + * still set them up and then try to migrate them without any + * migration support. + */ + if (pmd_large(*pmd)) + return true; + + ptep = pte_alloc_map_lock(mm, pmd, addr, &ptl); if (unlikely(!ptep)) return false; |