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authorAmir Goldstein <amir73il@gmail.com>2019-01-10 19:04:41 +0200
committerJan Kara <jack@suse.cz>2019-02-07 16:38:36 +0100
commit0321e03cb4572fb3b56582bcb4927c1fe985b191 (patch)
treed1b872b9b848f96c9bde1dd74b5f80a851c4b893
parent0a20df7ed3349dfa3260ddee2efa919df44d0ad5 (diff)
fanotify: check FS_ISDIR flag instead of d_is_dir()
All fsnotify hooks set the FS_ISDIR flag for events that happen on directory victim inodes except for fsnotify_perm(). Add the missing FS_ISDIR flag in fsnotify_perm() hook and let fanotify_group_event_mask() check the FS_ISDIR flag instead of checking if path argument is a directory. This is needed for fanotify support for event types that do not carry path information. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
-rw-r--r--fs/notify/fanotify/fanotify.c2
-rw-r--r--include/linux/fsnotify.h3
2 files changed, 4 insertions, 1 deletions
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 555831603637..195fc9fe0150 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -144,7 +144,7 @@ static u32 fanotify_group_event_mask(struct fsnotify_iter_info *iter_info,
marks_ignored_mask |= mark->ignored_mask;
}
- if (d_is_dir(path->dentry) &&
+ if (event_mask & FS_ISDIR &&
!(marks_mask & FS_ISDIR & ~marks_ignored_mask))
return 0;
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index 9becae610022..09587e2860b5 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -79,6 +79,9 @@ static inline int fsnotify_perm(struct file *file, int mask)
fsnotify_mask = FS_ACCESS_PERM;
}
+ if (S_ISDIR(inode->i_mode))
+ fsnotify_mask |= FS_ISDIR;
+
return fsnotify_path(inode, path, fsnotify_mask);
}