Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755518AbZKQHSj (ORCPT ); Tue, 17 Nov 2009 02:18:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754384AbZKQHSi (ORCPT ); Tue, 17 Nov 2009 02:18:38 -0500 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:58497 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754307AbZKQHSi (ORCPT ); Tue, 17 Nov 2009 02:18:38 -0500 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 From: KOSAKI Motohiro To: LKML Subject: [PATCH 3/7] mtd: Don't use PF_MEMALLOC Cc: kosaki.motohiro@jp.fujitsu.com, linux-mm , Andrew Morton , David Woodhouse , linux-mtd@lists.infradead.org In-Reply-To: <20091117161551.3DD4.A69D9226@jp.fujitsu.com> References: <20091117161551.3DD4.A69D9226@jp.fujitsu.com> Message-Id: <20091117161753.3DDD.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.50.07 [ja] Date: Tue, 17 Nov 2009 16:18:41 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1154 Lines: 36 Non MM subsystem must not use PF_MEMALLOC. Memory reclaim need few memory, anyone must not prevent it. Otherwise the system cause mysterious hang-up and/or OOM Killer invokation. Cc: David Woodhouse Cc: linux-mtd@lists.infradead.org Signed-off-by: KOSAKI Motohiro --- drivers/mtd/mtd_blkdevs.c | 3 --- 1 files changed, 0 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 8ca17a3..7be5ac3 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -82,9 +82,6 @@ static int mtd_blktrans_thread(void *arg) struct request_queue *rq = tr->blkcore_priv->rq; struct request *req = NULL; - /* we might get involved when memory gets low, so use PF_MEMALLOC */ - current->flags |= PF_MEMALLOC; - spin_lock_irq(rq->queue_lock); while (!kthread_should_stop()) { -- 1.6.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/