From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-f199.google.com (mail-qt0-f199.google.com [209.85.216.199]) by kanga.kvack.org (Postfix) with ESMTP id 974176B0338 for ; Mon, 24 Apr 2017 09:24:05 -0400 (EDT) Received: by mail-qt0-f199.google.com with SMTP id u30so40517974qtu.14 for ; Mon, 24 Apr 2017 06:24:05 -0700 (PDT) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id v88si18057898qte.114.2017.04.24.06.24.03 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 24 Apr 2017 06:24:03 -0700 (PDT) From: Jeff Layton Subject: [PATCH v3 08/20] mm: ensure that we set mapping error if writeout() fails Date: Mon, 24 Apr 2017 09:22:47 -0400 Message-Id: <20170424132259.8680-9-jlayton@redhat.com> In-Reply-To: <20170424132259.8680-1-jlayton@redhat.com> References: <20170424132259.8680-1-jlayton@redhat.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-cifs@vger.kernel.org, linux-mm@kvack.org, jfs-discussion@lists.sourceforge.net, linux-xfs@vger.kernel.org, cluster-devel@redhat.com, linux-f2fs-devel@lists.sourceforge.net, v9fs-developer@lists.sourceforge.net, osd-dev@open-osd.org, linux-nilfs@vger.kernel.org, linux-block@vger.kernel.org Cc: dhowells@redhat.com, akpm@linux-foundation.org, hch@infradead.org, ross.zwisler@linux.intel.com, mawilcox@microsoft.com, jack@suse.com, viro@zeniv.linux.org.uk, corbet@lwn.net, neilb@suse.de, clm@fb.com, tytso@mit.edu, axboe@kernel.dk 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 738f1d5f8350..3a59830bdae2 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -792,7 +792,11 @@ 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org