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| author | Eric Paris <eparis@redhat.com> | 2010-10-28 17:21:59 -0400 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2010-10-28 17:22:16 -0400 |
| commit | 192ca4d1941228e69c1fbeebab317725407e6e65 (patch) | |
| tree | cff474f312a41b5ab4fbbf72a558675f377e1808 | |
| parent | 8fcd65280abc4699510f1853ede31f43e8a3783a (diff) | |
| download | kernel_samsung_smdk4412-192ca4d1941228e69c1fbeebab317725407e6e65.zip kernel_samsung_smdk4412-192ca4d1941228e69c1fbeebab317725407e6e65.tar.gz kernel_samsung_smdk4412-192ca4d1941228e69c1fbeebab317725407e6e65.tar.bz2 | |
fanotify: do not recalculate the mask if the ignored mask changed
If fanotify sets a new bit in the ignored mask it will cause the generic
fsnotify layer to recalculate the real mask. This is stupid since we
didn't change that part.
Signed-off-by: Eric Paris <eparis@redhat.com>
| -rw-r--r-- | fs/notify/fanotify/fanotify_user.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index ff1a908..fa71d5d 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -558,15 +558,15 @@ static __u32 fanotify_mark_add_to_mask(struct fsnotify_mark *fsn_mark, __u32 mask, unsigned int flags) { - __u32 oldmask; + __u32 oldmask = -1; spin_lock(&fsn_mark->lock); if (!(flags & FAN_MARK_IGNORED_MASK)) { oldmask = fsn_mark->mask; fsnotify_set_mark_mask_locked(fsn_mark, (oldmask | mask)); } else { - oldmask = fsn_mark->ignored_mask; - fsnotify_set_mark_ignored_mask_locked(fsn_mark, (oldmask | mask)); + __u32 tmask = fsn_mark->ignored_mask | mask; + fsnotify_set_mark_ignored_mask_locked(fsn_mark, tmask); if (flags & FAN_MARK_IGNORED_SURV_MODIFY) fsn_mark->flags |= FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY; } |