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authorEric Paris <eparis@redhat.com>2009-05-21 17:01:29 -0400
committerEric Paris <eparis@redhat.com>2009-06-11 14:57:53 -0400
commitc28f7e56e9d95fb531dc3be8df2e7f52bee76d21 (patch)
treeefce13ed8c4f5b312ef0b77950489d52ef5a039a /include/linux/dcache.h
parent3be25f49b9d6a97eae9bcb96d3292072b7658bd8 (diff)
fsnotify: parent event notification
inotify and dnotify both use a similar parent notification mechanism. We add a generic parent notification mechanism to fsnotify for both of these to use. This new machanism also adds the dentry flag optimization which exists for inotify to dnotify. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'include/linux/dcache.h')
-rw-r--r--include/linux/dcache.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 15156364d196..97978004338d 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -180,10 +180,12 @@ d_iput: no no no yes
#define DCACHE_REFERENCED 0x0008 /* Recently used, don't discard. */
#define DCACHE_UNHASHED 0x0010
-#define DCACHE_INOTIFY_PARENT_WATCHED 0x0020 /* Parent inode is watched */
+#define DCACHE_INOTIFY_PARENT_WATCHED 0x0020 /* Parent inode is watched by inotify */
#define DCACHE_COOKIE 0x0040 /* For use by dcookie subsystem */
+#define DCACHE_FSNOTIFY_PARENT_WATCHED 0x0080 /* Parent inode is watched by some fsnotify listener */
+
extern spinlock_t dcache_lock;
extern seqlock_t rename_lock;