tree 3afb94a4d82371f2ffda08e88c45be09fbaec3ba
parent 4271b05a227dc6175b66c3d9941aeab09048aeb2
author Oleg Nesterov <oleg@redhat.com> 1380573927 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1380576663 -0700

pidns: fix free_pid() to handle the first fork failure

"case 0" in free_pid() assumes that disable_pid_allocation() should
clear PIDNS_HASH_ADDING before the last pid goes away.

However this doesn't happen if the first fork() fails to create the
child reaper which should call disable_pid_allocation().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>