linux-kernel - [PATCH] dm: noflush resizing (3/3) Allow table swapping with different size

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Message-ID: <471FB86A.2060609@ce.jp.nec.com>
Date:	Wed, 24 Oct 2007 17:26:02 -0400
From:	"Jun'ichi Nomura" <j-nomura@...jp.nec.com>
To:	device-mapper development <dm-devel@...hat.com>
CC:	linux-kernel@...r.kernel.org
Subject: [PATCH] dm: noflush resizing (3/3) Allow table swapping with different
 size

This patch removes the check for whether the loaded table
is going to change the device size and allows resizing of
the dm device suspended with 'noflush'.


Signed-off-by: Jun'ichi Nomura <j-nomura@...jp.nec.com>

---
 dm.c |    5 -----
 1 file changed, 5 deletions(-)

Index: linux-2.6.23.work/drivers/md/dm.c
===================================================================
--- linux-2.6.23.work.orig/drivers/md/dm.c
+++ linux-2.6.23.work/drivers/md/dm.c
@@ -1288,11 +1288,6 @@ int dm_swap_table(struct mapped_device *
 	if (!dm_suspended(md))
 		goto out;
 
-	/* without bdev, the device size cannot be changed */
-	if (!md->suspended_bdev)
-		if (get_capacity(md->disk) != dm_table_get_size(table))
-			goto out;
-
 	__unbind(md);
 	r = __bind(md, table);
 
-
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