| Date | Fri, 09 Mar 2012 11:03:34 -0800 | From | Greg KH <> | Subject | [ 92/95] dm raid: fix flush support |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: Jonathan E Brassow <jbrassow@redhat.com>
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 <jbrassow@redhat.com> Acked-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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);
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