Commit 18d8594d authored by Mike Snitzer's avatar Mike Snitzer Committed by Alasdair G Kergon
Browse files

dm log: fix create_log_context to use logical_block_size of log device 



create_log_context() must use the logical_block_size from the log disk,
where the I/O happens, not the target's logical_block_size.

Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
parent af4874e0

drivers/md/dm-log.c

+4 −3
Original line number Diff line number Diff line
@@ -412,9 +412,10 @@ static int create_log_context(struct dm_dirty_log *log, struct dm_target *ti, 
		/*

		 * Buffer holds both header and bitset.

		 */

		buf_size = dm_round_up((LOG_OFFSET << SECTOR_SHIFT) +

				       bitset_size,

				       ti->limits.logical_block_size);

		buf_size =

		    dm_round_up((LOG_OFFSET << SECTOR_SHIFT) + bitset_size,

				bdev_logical_block_size(lc->header_location.

							    bdev));



		if (buf_size > i_size_read(dev->bdev->bd_inode)) {

			DMWARN("log device %s too small: need %llu bytes",