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-rw-r--r--block/blk-integrity.c28
1 files changed, 14 insertions, 14 deletions
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index e3817a016a12..61a8e2f8fdd0 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -108,51 +108,51 @@ new_segment:
EXPORT_SYMBOL(blk_rq_map_integrity_sg);
/**
- * blk_integrity_compare - Compare integrity profile of two block devices
- * @bd1: Device to compare
- * @bd2: Device to compare
+ * blk_integrity_compare - Compare integrity profile of two disks
+ * @gd1: Disk to compare
+ * @gd2: Disk to compare
*
* Description: Meta-devices like DM and MD need to verify that all
* sub-devices use the same integrity format before advertising to
* upper layers that they can send/receive integrity metadata. This
- * function can be used to check whether two block devices have
+ * function can be used to check whether two gendisk devices have
* compatible integrity formats.
*/
-int blk_integrity_compare(struct block_device *bd1, struct block_device *bd2)
+int blk_integrity_compare(struct gendisk *gd1, struct gendisk *gd2)
{
- struct blk_integrity *b1 = bd1->bd_disk->integrity;
- struct blk_integrity *b2 = bd2->bd_disk->integrity;
+ struct blk_integrity *b1 = gd1->integrity;
+ struct blk_integrity *b2 = gd2->integrity;
- BUG_ON(bd1->bd_disk == NULL);
- BUG_ON(bd2->bd_disk == NULL);
+ if (!b1 && !b2)
+ return 0;
if (!b1 || !b2)
- return 0;
+ return -1;
if (b1->sector_size != b2->sector_size) {
printk(KERN_ERR "%s: %s/%s sector sz %u != %u\n", __func__,
- bd1->bd_disk->disk_name, bd2->bd_disk->disk_name,
+ gd1->disk_name, gd2->disk_name,
b1->sector_size, b2->sector_size);
return -1;
}
if (b1->tuple_size != b2->tuple_size) {
printk(KERN_ERR "%s: %s/%s tuple sz %u != %u\n", __func__,
- bd1->bd_disk->disk_name, bd2->bd_disk->disk_name,
+ gd1->disk_name, gd2->disk_name,
b1->tuple_size, b2->tuple_size);
return -1;
}
if (b1->tag_size && b2->tag_size && (b1->tag_size != b2->tag_size)) {
printk(KERN_ERR "%s: %s/%s tag sz %u != %u\n", __func__,
- bd1->bd_disk->disk_name, bd2->bd_disk->disk_name,
+ gd1->disk_name, gd2->disk_name,
b1->tag_size, b2->tag_size);
return -1;
}
if (strcmp(b1->name, b2->name)) {
printk(KERN_ERR "%s: %s/%s type %s != %s\n", __func__,
- bd1->bd_disk->disk_name, bd2->bd_disk->disk_name,
+ gd1->disk_name, gd2->disk_name,
b1->name, b2->name);
return -1;
}