Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932600AbbGPBcq (ORCPT ); Wed, 15 Jul 2015 21:32:46 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:56067 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755027AbbGPBL0 (ORCPT ); Wed, 15 Jul 2015 21:11:26 -0400 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Ilya Dryomov , Kamal Mostafa Subject: [PATCH 3.19.y-ckt 181/251] rbd: use GFP_NOIO in rbd_obj_request_create() Date: Wed, 15 Jul 2015 18:08:22 -0700 Message-Id: <1437008972-9140-182-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1437008972-9140-1-git-send-email-kamal@canonical.com> References: <1437008972-9140-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.19 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1718 Lines: 50 3.19.8-ckt4 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Ilya Dryomov commit 5a60e87603c4c533492c515b7f62578189b03c9c upstream. rbd_obj_request_create() is called on the main I/O path, so we need to use GFP_NOIO to make sure allocation doesn't blow back on us. Not all callers need this, but I'm still hardcoding the flag inside rather than making it a parameter because a) this is going to stable, and b) those callers shouldn't really use rbd_obj_request_create() and will be fixed in the future. More memory allocation fixes will follow. Signed-off-by: Ilya Dryomov Reviewed-by: Alex Elder Signed-off-by: Kamal Mostafa --- drivers/block/rbd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 733e621..0c4ede9 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1998,11 +1998,11 @@ static struct rbd_obj_request *rbd_obj_request_create(const char *object_name, rbd_assert(obj_request_type_valid(type)); size = strlen(object_name) + 1; - name = kmalloc(size, GFP_KERNEL); + name = kmalloc(size, GFP_NOIO); if (!name) return NULL; - obj_request = kmem_cache_zalloc(rbd_obj_request_cache, GFP_KERNEL); + obj_request = kmem_cache_zalloc(rbd_obj_request_cache, GFP_NOIO); if (!obj_request) { kfree(name); return NULL; -- 1.9.1 -- 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/