[dm-devel] [PATCH 07/11] dasd: don't set the discard_alignment queue limit

[Christoph Hellwig]

The discard_alignment queue limit is named a bit misleading means the
offset into the block device at which the discard granularity starts.
Setting it to PAGE_SIZE while the discard granularity is the block size
that is smaller or the same as PAGE_SIZE as done by dasd is mostly
harmless but also useless.

Signed-off-by: Christoph Hellwig <hch at lst.de>
---
 drivers/s390/block/dasd_fba.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 8bd5665db9198..60be7f7bf2d16 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -782,7 +782,6 @@ static void dasd_fba_setup_blk_queue(struct dasd_block *block)
 	blk_queue_segment_boundary(q, PAGE_SIZE - 1);
 
 	q->limits.discard_granularity = logical_block_size;
-	q->limits.discard_alignment = PAGE_SIZE;
 
 	/* Calculate max_discard_sectors and make it PAGE aligned */
 	max_bytes = USHRT_MAX * logical_block_size;
-- 
2.30.2