Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755337AbaKYLUl (ORCPT ); Tue, 25 Nov 2014 06:20:41 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:58735 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753577AbaKYKmU (ORCPT ); Tue, 25 Nov 2014 05:42:20 -0500 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Ilya Dryomov , Luis Henriques Subject: [PATCH 3.16.y-ckt 146/254] rbd: rbd workqueues need a resque worker Date: Tue, 25 Nov 2014 10:38:16 +0000 Message-Id: <1416912004-5928-147-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1416912004-5928-1-git-send-email-luis.henriques@canonical.com> References: <1416912004-5928-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.16 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.7-ckt2 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Ilya Dryomov commit 792c3a914910bd34302c5345578f85cfcb5e2c01 upstream. Need to use WQ_MEM_RECLAIM for our workqueues to prevent I/O lockups under memory pressure - we sit on the memory reclaim path. Signed-off-by: Ilya Dryomov Tested-by: Micha Krause Reviewed-by: Sage Weil Signed-off-by: Luis Henriques --- drivers/block/rbd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 5c38fe1f4b85..3d2b99a15f62 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -5103,7 +5103,8 @@ static int rbd_dev_device_setup(struct rbd_device *rbd_dev) set_capacity(rbd_dev->disk, rbd_dev->mapping.size / SECTOR_SIZE); set_disk_ro(rbd_dev->disk, rbd_dev->mapping.read_only); - rbd_dev->rq_wq = alloc_workqueue("%s", 0, 0, rbd_dev->disk->disk_name); + rbd_dev->rq_wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0, + rbd_dev->disk->disk_name); if (!rbd_dev->rq_wq) { ret = -ENOMEM; goto err_out_mapping; -- 2.1.0 -- 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/