recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.10/0091-dm-raid-fix-flush-support.patch

   1 From 8092731b611778e6151662f3cc35d02101bd0ab8 Mon Sep 17 00:00:00 2001
   2 From: Jonathan E Brassow <jbrassow@redhat.com>
   3 Date: Wed, 7 Mar 2012 19:09:48 +0000
   4 Subject: [PATCH 91/95] dm raid: fix flush support
   5
   6 commit 0ca93de9b789e0eb05e103f0c04de72df13da73a upstream.
   7
   8 Fix dm-raid flush support.
   9
  10 Both md and dm have support for flush, but the dm-raid target
  11 forgot to set the flag to indicate that flushes should be
  12 passed on.  (Important for data integrity e.g. with writeback cache
  13 enabled.)
  14
  15 Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
  16 Acked-by: Mike Snitzer <snitzer@redhat.com>
  17 Signed-off-by: Alasdair G Kergon <agk@redhat.com>
  18 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  19 ---
  20  drivers/md/dm-raid.c |    1 +
  21  1 file changed, 1 insertion(+)
  22
  23 diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
  24 index 4834d43..d2a3223 100644
  25 --- a/drivers/md/dm-raid.c
  26 +++ b/drivers/md/dm-raid.c
  27 @@ -974,6 +974,7 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
  28
  29         INIT_WORK(&rs->md.event_work, do_table_event);
  30         ti->private = rs;
  31 +       ti->num_flush_requests = 1;
  32
  33         mutex_lock(&rs->md.reconfig_mutex);
  34         ret = md_run(&rs->md);
  35 --
  36 1.7.9.4
  37