From: Mikulas Patocka <mpatocka@redhat.com>
Date: Tue, 6 Jan 2009 03:04:53 +0000 (+0000)
Subject: dm table: drop reference at unbind
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=a1b51e98676932d031f5eec1325b2df4bbdc8f26;p=openwrt%2Fstaging%2Fblogic.git

dm table: drop reference at unbind

Move one dm_table_put() so that the last reference in the thread
gets dropped in __unbind().

This is required for a following patch,
dm-table-rework-reference-counting.patch, which will change the logic in
such a way that table destructor is called only at specific points in
the code.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 421c9f02d8ca..82371412029f 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1330,8 +1330,8 @@ void dm_put(struct mapped_device *md)
 			dm_table_presuspend_targets(map);
 			dm_table_postsuspend_targets(map);
 		}
-		__unbind(md);
 		dm_table_put(map);
+		__unbind(md);
 		free_dev(md);
 	}
 }