tree b6b4bf48018d23c180cb7407ea1ff58402664e5c
parent 925d1132a03e33cb8f29a0057300d023b4f1be23
author Jan Kara <jack@suse.com> 1441406592 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1441410881 -0700

fsnotify: get rid of fsnotify_destroy_mark_locked()

fsnotify_destroy_mark_locked() is subtle to use because it temporarily
releases group->mark_mutex.  To avoid future problems with this
function, split it into two.

fsnotify_detach_mark() is the part that needs group->mark_mutex and
fsnotify_free_mark() is the part that must be called outside of
group->mark_mutex.  This way it's much clearer what's going on and we
also avoid some pointless acquisitions of group->mark_mutex.

Signed-off-by: Jan Kara <jack@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>