From 3298cf37bee59c66a51da0cea8bae0d0418e27fd Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Thu, 3 Apr 2014 14:46:32 -0700 Subject: [PATCH] fanotify: remove useless bypass_perm check The prepare_for_access_response() function checks whether group->fanotify_data.bypass_perm is set. However this test can never be true because prepare_for_access_response() is called only from fanotify_read() which means fanotify group is alive with an active fd while bypass_perm is set from fanotify_release() when all file descriptors pointing to the group are closed and the group is going away. Signed-off-by: Jan Kara Cc: Eric Paris Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/notify/fanotify/fanotify_user.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index 287a22c04149..70fe65437d21 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -211,14 +211,6 @@ static int prepare_for_access_response(struct fsnotify_group *group, re->fd = fd; mutex_lock(&group->fanotify_data.access_mutex); - - if (atomic_read(&group->fanotify_data.bypass_perm)) { - mutex_unlock(&group->fanotify_data.access_mutex); - kmem_cache_free(fanotify_response_event_cache, re); - FANOTIFY_E(event)->response = FAN_ALLOW; - return 0; - } - list_add_tail(&re->list, &group->fanotify_data.access_list); mutex_unlock(&group->fanotify_data.access_mutex); -- 2.34.1