From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]) by bombadil.infradead.org with esmtp (Exim 4.69 #1 (Red Hat Linux)) id 1NAIKu-0007m6-LO for linux-mtd@lists.infradead.org; Tue, 17 Nov 2009 07:18:53 +0000 Received: from m2.gw.fujitsu.co.jp ([10.0.50.72]) by fgwmail5.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id nAH7IhXG026887 for (envelope-from kosaki.motohiro@jp.fujitsu.com); Tue, 17 Nov 2009 16:18:43 +0900 Received: from smail (m2 [127.0.0.1]) by outgoing.m2.gw.fujitsu.co.jp (Postfix) with ESMTP id C04C545DE4F for ; Tue, 17 Nov 2009 16:18:42 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (s2.gw.fujitsu.co.jp [10.0.50.92]) by m2.gw.fujitsu.co.jp (Postfix) with ESMTP id 84FC045DE51 for ; Tue, 17 Nov 2009 16:18:42 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id 21A2C8F8007 for ; Tue, 17 Nov 2009 16:18:42 +0900 (JST) Received: from m106.s.css.fujitsu.com (m106.s.css.fujitsu.com [10.249.87.106]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id B8CA1E78003 for ; Tue, 17 Nov 2009 16:18:41 +0900 (JST) From: KOSAKI Motohiro To: LKML Subject: [PATCH 3/7] mtd: Don't use PF_MEMALLOC 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 Date: Tue, 17 Nov 2009 16:18:41 +0900 (JST) Cc: linux-mtd@lists.infradead.org, linux-mm , Andrew Morton , David Woodhouse , kosaki.motohiro@jp.fujitsu.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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