linux-kernel - [2.6.24 PATCH 25/25] dm raid1: add mirror

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Message-ID: <20071012172359.GK24157@agk.fab.redhat.com>
Date:	Fri, 12 Oct 2007 18:23:59 +0100
From:	Alasdair G Kergon <agk@...hat.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	dm-devel@...hat.com, linux-kernel@...r.kernel.org,
	Jonathan Brassow <jbrassow@...hat.com>
Subject: [2.6.24 PATCH 25/25] dm raid1: add mirror_set to struct mirror

From: Jonathan Brassow <jbrassow@...hat.com>

Store a pointer to the owning mirror_set structure within each mirror
structure for a subsequent patch to use.

Signed-off-by: Jonathan Brassow <jbrassow@...hat.com>
Signed-off-by: Alasdair G Kergon <agk@...hat.com>

---
 drivers/md/dm-raid1.c |    2 ++
 1 files changed, 2 insertions(+)

Index: linux-2.6.23/drivers/md/dm-raid1.c
===================================================================
--- linux-2.6.23.orig/drivers/md/dm-raid1.c	2007-10-12 15:03:32.000000000 +0100
+++ linux-2.6.23/drivers/md/dm-raid1.c	2007-10-12 15:03:33.000000000 +0100
@@ -114,6 +114,7 @@ struct region {
  * Mirror set structures.
  *---------------------------------------------------------------*/
 struct mirror {
+	struct mirror_set *ms;
 	atomic_t error_count;
 	struct dm_dev *dev;
 	sector_t offset;
@@ -1017,6 +1018,7 @@ static int get_mirror(struct mirror_set 
 		return -ENXIO;
 	}
 
+	ms->mirror[mirror].ms = ms;
 	ms->mirror[mirror].offset = offset;
 
 	return 0;
-
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