Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  fs/bio.c: fix shadows sparse warning
  drbd: The kernel code is now equivalent to out of tree release 8.3.7
  drbd: Allow online resizing of DRBD devices while peer not reachable (needs to be explicitly forced)
  drbd: Don't go into StandAlone mode when authentification failes because of network error
  drivers/block/drbd/drbd_receiver.c: correct NULL test
  cfq-iosched: Respect ioprio_class when preempting
  genhd: overlapping variable definition
  block: removed unused as_io_context
  DM: Fix device mapper topology stacking
  block: bdev_stack_limits wrapper
  block: Fix discard alignment calculation and printing
  block: Correct handling of bottom device misaligment
  drbd: check on CONFIG_LBDAF, not LBD
  drivers/block/drbd: Correct NULL test
  drbd: Silenced an assert that could triggered after changing write ordering method
  drbd: Kconfig fix
  drbd: Fix for a race between IO and a detach operation [Bugz 262]
  drbd: Use drbd_crypto_is_hash() instead of an open coded check

1 files changed, 5 insertions, 15 deletions

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index be625475cf6d..4b22feb01a0c 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -503,16 +503,15 @@ int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
 		return 0;
 	}
 
-	if (blk_stack_limits(limits, &q->limits, start << 9) < 0)
-		DMWARN("%s: target device %s is misaligned: "
+	if (bdev_stack_limits(limits, bdev, start) < 0)
+		DMWARN("%s: adding target device %s caused an alignment inconsistency: "
 		       "physical_block_size=%u, logical_block_size=%u, "
 		       "alignment_offset=%u, start=%llu",
 		       dm_device_name(ti->table->md), bdevname(bdev, b),
 		       q->limits.physical_block_size,
 		       q->limits.logical_block_size,
 		       q->limits.alignment_offset,
-		       (unsigned long long) start << 9);
-
+		       (unsigned long long) start << SECTOR_SHIFT);
 
 	/*
 	 * Check if merge fn is supported.
@@ -1026,9 +1025,9 @@ combine_limits:
 		 * for the table.
 		 */
 		if (blk_stack_limits(limits, &ti_limits, 0) < 0)
-			DMWARN("%s: target device "
+			DMWARN("%s: adding target device "
 			       "(start sect %llu len %llu) "
-			       "is misaligned",
+			       "caused an alignment inconsistency",
 			       dm_device_name(table->md),
 			       (unsigned long long) ti->begin,
 			       (unsigned long long) ti->len);
@@ -1080,15 +1079,6 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 			       struct queue_limits *limits)
 {
 	/*
-	 * Each target device in the table has a data area that should normally
-	 * be aligned such that the DM device's alignment_offset is 0.
-	 * FIXME: Propagate alignment_offsets up the stack and warn of
-	 *	  sub-optimal or inconsistent settings.
-	 */
-	limits->alignment_offset = 0;
-	limits->misaligned = 0;
-
-	/*
 	 * Copy table's limits to the DM device's request_queue
 	 */
 	q->limits = *limits;