tree 5533f5cb2c7a054db9784b48e0b8484d5060f7d7
parent 387c31c7e5c9805b0aef8833d1731a5fe7bdea14
author Hillf Danton <dhillf@gmail.com> 1293630928 +0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1293651098 -0800

fix freeing user_struct in user cache

When racing on adding into user cache, the new allocated from mm slab
is freed without putting user namespace.

Since the user namespace is already operated by getting, putting has
to be issued.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Acked-by: Serge Hallyn <serge@hallyn.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>