From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 8 Jul 2013 23:00:08 +0000 (-0700)
Subject: vfree: don't schedule free_work() if llist_add() returns false
X-Git-Tag: v3.11-rc1~67^2~87
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=59d3132f8abdc18301898febf205d00db5f0458c;p=pandora-kernel.git

vfree: don't schedule free_work() if llist_add() returns false

vfree() only needs schedule_work(&p->wq) if p->list was empty, otherwise
vfree_deferred->wq is already pending or it is running and didn't do
llist_del_all() yet.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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