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authorChristoph Böhmwalder2022-11-09 14:34:51 +0100
committerGreg Kroah-Hartman2022-12-31 13:32:10 +0100
commit0c57b39033e002af8f560c85091bd9c633f5aedd (patch)
treeb9cf31c35e88d0fb9f6bb8b4ec0efb86d1e6eff1 /drivers/block
parent961db32e52f4d34a9a95939a30393fd190397f84 (diff)
drbd: use blk_queue_max_discard_sectors helper
[ Upstream commit 258bea6388ac93f34561fd91064232d14e174bff ] We currently only set q->limits.max_discard_sectors, but that is not enough. Another field, max_hw_discard_sectors, was introduced in commit 0034af036554 ("block: make /sys/block/<dev>/queue/discard_max_bytes writeable"). The difference is that max_discard_sectors can be changed from user space via sysfs, while max_hw_discard_sectors is the "hardware" upper limit. So use this helper, which sets both. This is also a fixup for commit 998e9cbcd615 ("drbd: cleanup decide_on_discard_support"): if discards are not supported, that does not necessarily mean we also want to disable write_zeroes. Fixes: 998e9cbcd615 ("drbd: cleanup decide_on_discard_support") Reviewed-by: Joel Colledge <joel.colledge@linbit.com> Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> Link: https://lore.kernel.org/r/20221109133453.51652-2-christoph.boehmwalder@linbit.com Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/drbd/drbd_nl.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 864c98e74875..249eba7d21c2 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1210,6 +1210,7 @@ static void decide_on_discard_support(struct drbd_device *device,
struct drbd_connection *connection =
first_peer_device(device)->connection;
struct request_queue *q = device->rq_queue;
+ unsigned int max_discard_sectors;
if (bdev && !bdev_max_discard_sectors(bdev->backing_bdev))
goto not_supported;
@@ -1230,15 +1231,14 @@ static void decide_on_discard_support(struct drbd_device *device,
* topology on all peers.
*/
blk_queue_discard_granularity(q, 512);
- q->limits.max_discard_sectors = drbd_max_discard_sectors(connection);
- q->limits.max_write_zeroes_sectors =
- drbd_max_discard_sectors(connection);
+ max_discard_sectors = drbd_max_discard_sectors(connection);
+ blk_queue_max_discard_sectors(q, max_discard_sectors);
+ blk_queue_max_write_zeroes_sectors(q, max_discard_sectors);
return;
not_supported:
blk_queue_discard_granularity(q, 0);
- q->limits.max_discard_sectors = 0;
- q->limits.max_write_zeroes_sectors = 0;
+ blk_queue_max_discard_sectors(q, 0);
}
static void fixup_write_zeroes(struct drbd_device *device, struct request_queue *q)