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

Christoph Hellwig
2022-04-18T04:53:57Z

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@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