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authorJohn McCutchan <ttb@tentacle.dhs.org>2005-12-12 11:37:14 +0300
committerLinus Torvalds <torvalds@g5.osdl.org>2005-12-12 19:57:43 +0300
commit8140a5005bc6f1c9d0fa103460d50d472e6e3426 (patch)
tree9c5ae431bf1db43e3a1e7a4cceb472c76077ac18 /include/linux/inotify.h
parentb4788f6d55548e587ced330ece711456f40ec8f1 (diff)
downloadlinux-8140a5005bc6f1c9d0fa103460d50d472e6e3426.tar.xz
[PATCH] inotify: add two inotify_add_watch flags
The below patch lets userspace have more control over the inodes that inotify will watch. It introduces two new flags. IN_ONLYDIR -- only watch the inode if it is a directory. This is needed to avoid the race that can occur when we want to be sure that we are watching a directory. IN_DONT_FOLLOW -- don't follow a symlink. In combination with IN_ONLYDIR we can make sure that we don't watch the target of symlinks. The issues the flags fix came up when writing the gnome-vfs inotify backend. Default behaviour is unchanged. Signed-off-by: John McCutchan <ttb@tentacle.dhs.org> Acked-by: Robert Love <rml@novell.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/inotify.h')
-rw-r--r--include/linux/inotify.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/inotify.h b/include/linux/inotify.h
index ee5b239092ed..267c88b5f742 100644
--- a/include/linux/inotify.h
+++ b/include/linux/inotify.h
@@ -47,6 +47,8 @@ struct inotify_event {
#define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* moves */
/* special flags */
+#define IN_ONLYDIR 0x01000000 /* only watch the path if it is a directory */
+#define IN_DONT_FOLLOW 0x02000000 /* don't follow a sym link */
#define IN_MASK_ADD 0x20000000 /* add to the mask of an already existing watch */
#define IN_ISDIR 0x40000000 /* event occurred against dir */
#define IN_ONESHOT 0x80000000 /* only send event once */