[PATCH 05/26] loop: always update discard settings in loop_reconfigure_limits

[Christoph Hellwig]

Simplify loop_reconfigure_limits by always updating the discard limits.
This adds a little more work to loop_set_block_size, but doesn't change
the outcome as the discard flag won't change.

Signed-off-by: Christoph Hellwig <hch at lst.de>
Reviewed-by: Damien Le Moal <dlemoal at kernel.org>
Reviewed-by: Hannes Reinecke <hare at suse.de>
Reviewed-by: Bart Van Assche <bvanassche at acm.org>
---
 drivers/block/loop.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index fd671028fa8554..ce197cbea5f434 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -975,8 +975,7 @@ loop_set_status_from_info(struct loop_device *lo,
 	return 0;
 }
 
-static int loop_reconfigure_limits(struct loop_device *lo, unsigned short bsize,
-		bool update_discard_settings)
+static int loop_reconfigure_limits(struct loop_device *lo, unsigned short bsize)
 {
 	struct queue_limits lim;
 
@@ -984,8 +983,7 @@ static int loop_reconfigure_limits(struct loop_device *lo, unsigned short bsize,
 	lim.logical_block_size = bsize;
 	lim.physical_block_size = bsize;
 	lim.io_min = bsize;
-	if (update_discard_settings)
-		loop_config_discard(lo, &lim);
+	loop_config_discard(lo, &lim);
 	return queue_limits_commit_update(lo->lo_queue, &lim);
 }
 
@@ -1086,7 +1084,7 @@ static int loop_configure(struct loop_device *lo, blk_mode_t mode,
 	else
 		bsize = 512;
 
-	error = loop_reconfigure_limits(lo, bsize, true);
+	error = loop_reconfigure_limits(lo, bsize);
 	if (WARN_ON_ONCE(error))
 		goto out_unlock;
 
@@ -1496,7 +1494,7 @@ static int loop_set_block_size(struct loop_device *lo, unsigned long arg)
 	invalidate_bdev(lo->lo_device);
 
 	blk_mq_freeze_queue(lo->lo_queue);
-	err = loop_reconfigure_limits(lo, arg, false);
+	err = loop_reconfigure_limits(lo, arg);
 	loop_update_dio(lo);
 	blk_mq_unfreeze_queue(lo->lo_queue);
 
-- 
2.43.0