From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 30 Sep 2013 20:45:27 +0000 (-0700)
Subject: pidns: fix free_pid() to handle the first fork failure
X-Git-Tag: v3.12-rc4~35^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=314a8ad0f18ac37887896b288939acd8cb17e208;p=pandora-kernel.git

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>
---

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