Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753823AbdCHQiH (ORCPT ); Wed, 8 Mar 2017 11:38:07 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46656 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750849AbdCHQiD (ORCPT ); Wed, 8 Mar 2017 11:38:03 -0500 From: Jeff Layton To: viro@zeniv.linux.org.uk, akpm@linux-foundation.org Cc: konishi.ryusuke@lab.ntt.co.jp, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-nilfs@vger.kernel.org, ross.zwisler@linux.intel.com, jack@suse.cz, neilb@suse.com, openosd@gmail.com, adilger@dilger.ca, James.Bottomley@HansenPartnership.com Subject: [PATCH v2 7/9] mm: ensure that we set mapping error if writeout() fails Date: Wed, 8 Mar 2017 11:29:32 -0500 Message-Id: <20170308162934.21989-8-jlayton@redhat.com> In-Reply-To: <20170308162934.21989-1-jlayton@redhat.com> References: <20170308162934.21989-1-jlayton@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Wed, 08 Mar 2017 16:30:19 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 644 Lines: 27 If writepage fails during a page migration, then we need to ensure that fsync will see it by flagging the mapping. Signed-off-by: Jeff Layton --- mm/migrate.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/mm/migrate.c b/mm/migrate.c index 9a0897a14d37..a9c0b46865b7 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -789,7 +789,11 @@ static int writeout(struct address_space *mapping, struct page *page) /* unlocked. Relock */ lock_page(page); - return (rc < 0) ? -EIO : -EAGAIN; + if (rc < 0) { + mapping_set_error(mapping, rc); + return -EIO; + } + return -EAGAIN; } /* -- 2.9.3