From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20120309190209.690711017@linuxfoundation.org> Date: Fri, 09 Mar 2012 11:03:34 -0800 From: Greg KH To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Jonathan Brassow , Mike Snitzer , Alasdair G Kergon Subject: [ 92/95] dm raid: fix flush support In-Reply-To: <20120309194424.GA2134@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jonathan E Brassow commit 0ca93de9b789e0eb05e103f0c04de72df13da73a upstream. Fix dm-raid flush support. Both md and dm have support for flush, but the dm-raid target forgot to set the flag to indicate that flushes should be passed on. (Important for data integrity e.g. with writeback cache enabled.) Signed-off-by: Jonathan Brassow Acked-by: Mike Snitzer Signed-off-by: Alasdair G Kergon Signed-off-by: Greg Kroah-Hartman --- drivers/md/dm-raid.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -974,6 +974,7 @@ static int raid_ctr(struct dm_target *ti INIT_WORK(&rs->md.event_work, do_table_event); ti->private = rs; + ti->num_flush_requests = 1; mutex_lock(&rs->md.reconfig_mutex); ret = md_run(&rs->md);