tree 5263cf56e792cfc5ddf37748d2868fce9866af68
parent cf4374267fbe966e8e4e7db68f5dc7b267439780
author Eric Paris <eparis@redhat.com> 1251144215 -0400
committer Eric Paris <eparis@redhat.com> 1251374524 -0400

inotify: fix locking around inotify watching in the idr

The are races around the idr storage of inotify watches.  It's possible
that a watch could be found from sys_inotify_rm_watch() in the idr, but it
could be removed from the idr before that code does it's removal.  Move the
locking and the refcnt'ing so that these have to happen atomically.

Signed-off-by: Eric Paris <eparis@redhat.com>