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Date:	Tue, 28 May 2013 14:19:45 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Mike Snitzer <snitzer@...hat.com>,
	Alasdair G Kergon <agk@...hat.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 36/78] dm table: fix write same support

3.8.13.1 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mike Snitzer <snitzer@...hat.com>

commit dc019b21fb92d620a3b52ccecc135ac968a7c7ec upstream.

If device_not_write_same_capable() returns true then the iterate_devices
loop in dm_table_supports_write_same() should return false.

Reported-by: Bharata B Rao <bharata.rao@...il.com>
Signed-off-by: Mike Snitzer <snitzer@...hat.com>
Signed-off-by: Alasdair G Kergon <agk@...hat.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/md/dm-table.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index daf25d0..62545f6 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1443,7 +1443,7 @@ static bool dm_table_supports_write_same(struct dm_table *t)
 			return false;
 
 		if (!ti->type->iterate_devices ||
-		    !ti->type->iterate_devices(ti, device_not_write_same_capable, NULL))
+		    ti->type->iterate_devices(ti, device_not_write_same_capable, NULL))
 			return false;
 	}
 
-- 
1.8.1.2

--
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