From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752814AbbIZKqt (ORCPT ); Sat, 26 Sep 2015 06:46:49 -0400 Received: from mx2.parallels.com ([199.115.105.18]:56921 "EHLO mx2.parallels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752727AbbIZKqO (ORCPT ); Sat, 26 Sep 2015 06:46:14 -0400 From: Vladimir Davydov To: Andrew Morton CC: Johannes Weiner , Michal Hocko , Tejun Heo , , Subject: [PATCH 2/5] fs: charge pipe buffers to memcg Date: Sat, 26 Sep 2015 13:45:54 +0300 Message-ID: <94f055dc719129a26149b0f8b22af7c61a3fb4e6.1443262808.git.vdavydov@parallels.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain X-ClientProxiedBy: US-EXCH2.sw.swsoft.com (10.255.249.46) To US-EXCH2.sw.swsoft.com (10.255.249.46) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Pipe buffers can be generated unrestrictedly by an unprivileged userspace process, so they shouldn't go unaccounted. Signed-off-by: Vladimir Davydov --- fs/pipe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/pipe.c b/fs/pipe.c index 8865f7963700..6880884b70b0 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -400,7 +400,7 @@ pipe_write(struct kiocb *iocb, struct iov_iter *from) int copied; if (!page) { - page = alloc_page(GFP_HIGHUSER); + page = alloc_kmem_pages(GFP_HIGHUSER, 0); if (unlikely(!page)) { ret = ret ? : -ENOMEM; break; -- 2.1.4