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-rw-r--r--fs/notify/inotify/inotify_user.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 959815c1e017..60f954a891ab 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -636,7 +636,8 @@ static int inotify_new_watch(struct fsnotify_group *group,
goto out_err;
/* we are on the idr, now get on the inode */
- ret = fsnotify_add_mark(&tmp_i_mark->fsn_mark, group, inode, NULL, 0);
+ ret = fsnotify_add_mark_locked(&tmp_i_mark->fsn_mark, group, inode,
+ NULL, 0);
if (ret) {
/* we failed to get on the inode, get off the idr */
inotify_remove_from_idr(group, tmp_i_mark);
@@ -660,19 +661,13 @@ static int inotify_update_watch(struct fsnotify_group *group, struct inode *inod
{
int ret = 0;
-retry:
+ mutex_lock(&group->mark_mutex);
/* try to update and existing watch with the new arg */
ret = inotify_update_existing_watch(group, inode, arg);
/* no mark present, try to add a new one */
if (ret == -ENOENT)
ret = inotify_new_watch(group, inode, arg);
- /*
- * inotify_new_watch could race with another thread which did an
- * inotify_new_watch between the update_existing and the add watch
- * here, go back and try to update an existing mark again.
- */
- if (ret == -EEXIST)
- goto retry;
+ mutex_unlock(&group->mark_mutex);
return ret;
}