Merge branch 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull misc dcache updates from Al Viro:
 "Most of this pile is putting name length into struct name_snapshot and
  making use of it.

  The beginning of this series ("ovl_lookup_real_one(): don't bother
  with strlen()") ought to have been split in two (separate switch of
  name_snapshot to struct qstr from overlayfs reaping the trivial
  benefits of that), but I wanted to avoid a rebase - by the time I'd
  spotted that it was (a) in -next and (b) close to 5.1-final ;-/"

* 'work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  audit_compare_dname_path(): switch to const struct qstr *
  audit_update_watch(): switch to const struct qstr *
  inotify_handle_event(): don't bother with strlen()
  fsnotify: switch send_to_group() and ->handle_event to const struct qstr *
  fsnotify(): switch to passing const struct qstr * for file_name
  switch fsnotify_move() to passing const struct qstr * for old_name
  ovl_lookup_real_one(): don't bother with strlen()
  sysv: bury the broken "quietly truncate the long filenames" logics
  nsfs: unobfuscate
  unexport d_alloc_pseudo()

3 files changed, 9 insertions, 10 deletions

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 6e1e8e6602c6..73c3a8f90580 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -235,7 +235,6 @@ extern void d_set_d_op(struct dentry *dentry, const struct dentry_operations *op
 /* allocate/de-allocate */
 extern struct dentry * d_alloc(struct dentry *, const struct qstr *);
 extern struct dentry * d_alloc_anon(struct super_block *);
-extern struct dentry * d_alloc_pseudo(struct super_block *, const struct qstr *);
 extern struct dentry * d_alloc_parallel(struct dentry *, const struct qstr *,
 					wait_queue_head_t *);
 extern struct dentry * d_splice_alias(struct inode *, struct dentry *);
@@ -594,7 +593,7 @@ static inline struct inode *d_real_inode(const struct dentry *dentry)
 }
 
 struct name_snapshot {
-	const unsigned char *name;
+	struct qstr name;
 	unsigned char inline_name[DNAME_INLINE_LEN];
 };
 void take_dentry_name_snapshot(struct name_snapshot *, struct dentry *);
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index 09587e2860b5..0c0ef3078a22 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -27,7 +27,7 @@ static inline int fsnotify_dirent(struct inode *dir, struct dentry *dentry,
 				  __u32 mask)
 {
 	return fsnotify(dir, mask, d_inode(dentry), FSNOTIFY_EVENT_INODE,
-			dentry->d_name.name, 0);
+			&dentry->d_name, 0);
 }
 
 /* Notify this dentry's parent about a child's events. */
@@ -102,7 +102,7 @@ static inline void fsnotify_link_count(struct inode *inode)
  * fsnotify_move - file old_name at old_dir was moved to new_name at new_dir
  */
 static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
-				 const unsigned char *old_name,
+				 const struct qstr *old_name,
 				 int isdir, struct inode *target,
 				 struct dentry *moved)
 {
@@ -111,7 +111,7 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
 	__u32 old_dir_mask = FS_MOVED_FROM;
 	__u32 new_dir_mask = FS_MOVED_TO;
 	__u32 mask = FS_MOVE_SELF;
-	const unsigned char *new_name = moved->d_name.name;
+	const struct qstr *new_name = &moved->d_name;
 
 	if (old_dir == new_dir)
 		old_dir_mask |= FS_DN_RENAME;
@@ -178,7 +178,7 @@ static inline void fsnotify_nameremove(struct dentry *dentry, int isdir)
 	take_dentry_name_snapshot(&name, dentry);
 
 	fsnotify(d_inode(parent), mask, d_inode(dentry), FSNOTIFY_EVENT_INODE,
-		 name.name, 0);
+		 &name.name, 0);
 
 	release_dentry_name_snapshot(&name);
 	dput(parent);
@@ -218,7 +218,7 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct
 	fsnotify_link_count(inode);
 	audit_inode_child(dir, new_dentry, AUDIT_TYPE_CHILD_CREATE);
 
-	fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, new_dentry->d_name.name, 0);
+	fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, &new_dentry->d_name, 0);
 }
 
 /*
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index dfc28fcb4de8..c28f6ed1f59b 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -117,7 +117,7 @@ struct fsnotify_ops {
 	int (*handle_event)(struct fsnotify_group *group,
 			    struct inode *inode,
 			    u32 mask, const void *data, int data_type,
-			    const unsigned char *file_name, u32 cookie,
+			    const struct qstr *file_name, u32 cookie,
 			    struct fsnotify_iter_info *iter_info);
 	void (*free_group_priv)(struct fsnotify_group *group);
 	void (*freeing_mark)(struct fsnotify_mark *mark, struct fsnotify_group *group);
@@ -350,7 +350,7 @@ struct fsnotify_mark {
 
 /* main fsnotify call to send events */
 extern int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
-		    const unsigned char *name, u32 cookie);
+		    const struct qstr *name, u32 cookie);
 extern int __fsnotify_parent(const struct path *path, struct dentry *dentry, __u32 mask);
 extern void __fsnotify_inode_delete(struct inode *inode);
 extern void __fsnotify_vfsmount_delete(struct vfsmount *mnt);
@@ -505,7 +505,7 @@ static inline void fsnotify_init_event(struct fsnotify_event *event,
 #else
 
 static inline int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
-			   const unsigned char *name, u32 cookie)
+			   const struct qstr *name, u32 cookie)
 {
 	return 0;
 }