Merge tag 'mm-hotfixes-stable-2024-10-09-15-46' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "12 hotfixes, 5 of which are c:stable. All singletons, about half of
  which are MM"

* tag 'mm-hotfixes-stable-2024-10-09-15-46' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: zswap: delete comments for "value" member of 'struct zswap_entry'.
  CREDITS: sort alphabetically by name
  secretmem: disable memfd_secret() if arch cannot set direct map
  .mailmap: update Fangrui's email
  mm/huge_memory: check pmd_special() only after pmd_present()
  resource, kunit: fix user-after-free in resource_test_region_intersects()
  fs/proc/kcore.c: allow translation of physical memory addresses
  selftests/mm: fix incorrect buffer->mirror size in hmm2 double_map test
  device-dax: correct pgoff align in dax_set_mapping()
  kthread: unpark only parked kthread
  Revert "mm: introduce PF_MEMALLOC_NORECLAIM, PF_MEMALLOC_NOWARN"
  bcachefs: do not use PF_MEMALLOC_NORECLAIM

4 files changed, 14 insertions, 18 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index e3c603d01337..3559446279c1 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3082,7 +3082,12 @@ extern loff_t default_llseek(struct file *file, loff_t offset, int whence);
 
 extern loff_t vfs_llseek(struct file *file, loff_t offset, int whence);
 
-extern int inode_init_always(struct super_block *, struct inode *);
+extern int inode_init_always_gfp(struct super_block *, struct inode *, gfp_t);
+static inline int inode_init_always(struct super_block *sb, struct inode *inode)
+{
+	return inode_init_always_gfp(sb, inode, GFP_NOFS);
+}
+
 extern void inode_init_once(struct inode *);
 extern void address_space_init_once(struct address_space *mapping);
 extern struct inode * igrab(struct inode *);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e6ee4258169a..449dd64ed9ac 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1681,8 +1681,8 @@ extern struct pid *cad_pid;
 						 * I am cleaning dirty pages from some other bdi. */
 #define PF_KTHREAD		0x00200000	/* I am a kernel thread */
 #define PF_RANDOMIZE		0x00400000	/* Randomize virtual address space */
-#define PF_MEMALLOC_NORECLAIM	0x00800000	/* All allocation requests will clear __GFP_DIRECT_RECLAIM */
-#define PF_MEMALLOC_NOWARN	0x01000000	/* All allocation requests will inherit __GFP_NOWARN */
+#define PF__HOLE__00800000	0x00800000
+#define PF__HOLE__01000000	0x01000000
 #define PF__HOLE__02000000	0x02000000
 #define PF_NO_SETAFFINITY	0x04000000	/* Userland is not allowed to meddle with cpus_mask */
 #define PF_MCE_EARLY		0x08000000      /* Early kill for mce process policy */
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 07bb8d4181d7..928a626725e6 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -251,25 +251,16 @@ static inline gfp_t current_gfp_context(gfp_t flags)
 {
 	unsigned int pflags = READ_ONCE(current->flags);
 
-	if (unlikely(pflags & (PF_MEMALLOC_NOIO |
-			       PF_MEMALLOC_NOFS |
-			       PF_MEMALLOC_NORECLAIM |
-			       PF_MEMALLOC_NOWARN |
-			       PF_MEMALLOC_PIN))) {
+	if (unlikely(pflags & (PF_MEMALLOC_NOIO | PF_MEMALLOC_NOFS | PF_MEMALLOC_PIN))) {
 		/*
-		 * Stronger flags before weaker flags:
-		 * NORECLAIM implies NOIO, which in turn implies NOFS
+		 * NOIO implies both NOIO and NOFS and it is a weaker context
+		 * so always make sure it makes precedence
 		 */
-		if (pflags & PF_MEMALLOC_NORECLAIM)
-			flags &= ~__GFP_DIRECT_RECLAIM;
-		else if (pflags & PF_MEMALLOC_NOIO)
+		if (pflags & PF_MEMALLOC_NOIO)
 			flags &= ~(__GFP_IO | __GFP_FS);
 		else if (pflags & PF_MEMALLOC_NOFS)
 			flags &= ~__GFP_FS;
 
-		if (pflags & PF_MEMALLOC_NOWARN)
-			flags |= __GFP_NOWARN;
-
 		if (pflags & PF_MEMALLOC_PIN)
 			flags &= ~__GFP_MOVABLE;
 	}
diff --git a/include/linux/security.h b/include/linux/security.h
index b86ec2afc691..2ec8f3014757 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -348,7 +348,7 @@ int security_dentry_create_files_as(struct dentry *dentry, int mode,
 					struct cred *new);
 int security_path_notify(const struct path *path, u64 mask,
 					unsigned int obj_type);
-int security_inode_alloc(struct inode *inode);
+int security_inode_alloc(struct inode *inode, gfp_t gfp);
 void security_inode_free(struct inode *inode);
 int security_inode_init_security(struct inode *inode, struct inode *dir,
 				 const struct qstr *qstr,
@@ -789,7 +789,7 @@ static inline int security_path_notify(const struct path *path, u64 mask,
 	return 0;
 }
 
-static inline int security_inode_alloc(struct inode *inode)
+static inline int security_inode_alloc(struct inode *inode, gfp_t gfp)
 {
 	return 0;
 }