* [PATCH 5 of 9] MD: no integrity register if no gendisk
@ 2011-05-24 3:06 Jonathan Brassow
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From: Jonathan Brassow @ 2011-05-24 3:06 UTC (permalink / raw)
To: linux-raid
Patch name: md-no-integrity-register-if-no-gendisk.patch
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))
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2011-05-24 3:06 [PATCH 5 of 9] MD: no integrity register if no gendisk Jonathan Brassow
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