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From: Jonathan Brassow <jbrassow@redhat.com>
To: linux-raid@vger.kernel.org
Subject: [PATCH 1 of 8] MD:  no integrity register if no gendisk
Date: Tue, 07 Jun 2011 17:46:50 -0500	[thread overview]
Message-ID: <1307486810.31279.5.camel@f14.redhat.com> (raw)

Don't attempt md_integrity_register if there is no gendisk struct available.

When MD arrays are built via device-mapper, the gendisk structure is not
available via mddev.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>

Index: linux-2.6/drivers/md/md.c
===================================================================
--- linux-2.6.orig/drivers/md/md.c
+++ linux-2.6/drivers/md/md.c
@@ -1781,8 +1781,8 @@ int md_integrity_register(mddev_t *mddev
 
 	if (list_empty(&mddev->disks))
 		return 0; /* nothing to do */
-	if (blk_get_integrity(mddev->gendisk))
-		return 0; /* already registered */
+	if (!mddev->gendisk || blk_get_integrity(mddev->gendisk))
+		return 0; /* shouldn't register, or already is */
 	list_for_each_entry(rdev, &mddev->disks, same_set) {
 		/* skip spares and non-functional disks */
 		if (test_bit(Faulty, &rdev->flags))



                 reply	other threads:[~2011-06-07 22:46 UTC|newest]

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