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-rw-r--r--include/linux/dcache.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 15156364d196..30b93b2a01a4 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -180,10 +180,12 @@ d_iput: no no no yes
180#define DCACHE_REFERENCED 0x0008 /* Recently used, don't discard. */ 180#define DCACHE_REFERENCED 0x0008 /* Recently used, don't discard. */
181#define DCACHE_UNHASHED 0x0010 181#define DCACHE_UNHASHED 0x0010
182 182
183#define DCACHE_INOTIFY_PARENT_WATCHED 0x0020 /* Parent inode is watched */ 183#define DCACHE_INOTIFY_PARENT_WATCHED 0x0020 /* Parent inode is watched by inotify */
184 184
185#define DCACHE_COOKIE 0x0040 /* For use by dcookie subsystem */ 185#define DCACHE_COOKIE 0x0040 /* For use by dcookie subsystem */
186 186
187#define DCACHE_FSNOTIFY_PARENT_WATCHED 0x0080 /* Parent inode is watched by some fsnotify listener */
188
187extern spinlock_t dcache_lock; 189extern spinlock_t dcache_lock;
188extern seqlock_t rename_lock; 190extern seqlock_t rename_lock;
189 191
@@ -351,6 +353,11 @@ static inline int d_unhashed(struct dentry *dentry)
351 return (dentry->d_flags & DCACHE_UNHASHED); 353 return (dentry->d_flags & DCACHE_UNHASHED);
352} 354}
353 355
356static inline int d_unlinked(struct dentry *dentry)
357{
358 return d_unhashed(dentry) && !IS_ROOT(dentry);
359}
360
354static inline struct dentry *dget_parent(struct dentry *dentry) 361static inline struct dentry *dget_parent(struct dentry *dentry)
355{ 362{
356 struct dentry *ret; 363 struct dentry *ret;
@@ -368,7 +375,7 @@ static inline int d_mountpoint(struct dentry *dentry)
368 return dentry->d_mounted; 375 return dentry->d_mounted;
369} 376}
370 377
371extern struct vfsmount *lookup_mnt(struct vfsmount *, struct dentry *); 378extern struct vfsmount *lookup_mnt(struct path *);
372extern struct dentry *lookup_create(struct nameidata *nd, int is_dir); 379extern struct dentry *lookup_create(struct nameidata *nd, int is_dir);
373 380
374extern int sysctl_vfs_cache_pressure; 381extern int sysctl_vfs_cache_pressure;