Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933367AbdCaT2O (ORCPT ); Fri, 31 Mar 2017 15:28:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38516 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755320AbdCaT0H (ORCPT ); Fri, 31 Mar 2017 15:26:07 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com AE16D437F49 Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=jlayton@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com AE16D437F49 From: Jeff Layton To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org, akpm@linux-foundation.org, tytso@mit.edu, jack@suse.cz, willy@infradead.org, neilb@suse.com Subject: [RFC PATCH 2/4] dax: set errors in mapping when writeback fails Date: Fri, 31 Mar 2017 15:26:01 -0400 Message-Id: <20170331192603.16442-3-jlayton@redhat.com> In-Reply-To: <20170331192603.16442-1-jlayton@redhat.com> References: <20170331192603.16442-1-jlayton@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 31 Mar 2017 19:26:06 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 629 Lines: 26 In order to get proper error codes from fsync, we must set an error in the mapping range when writeback fails. Signed-off-by: Jeff Layton --- fs/dax.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/dax.c b/fs/dax.c index de622d4282a6..b76b3ffc141a 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -892,8 +892,10 @@ int dax_writeback_mapping_range(struct address_space *mapping, ret = dax_writeback_one(bdev, mapping, indices[i], pvec.pages[i]); - if (ret < 0) + if (ret < 0) { + filemap_set_wb_error(mapping, ret); return ret; + } } } return 0; -- 2.9.3