Commit cbac56e5 authored by Bart Van Assche's avatar Bart Van Assche Committed by Jens Axboe
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blk-zoned: Document locking assumptions 



Document which functions expect that their callers must hold a lock.

Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDamien Le Moal <dlemoal@kernel.org>
Signed-off-by: default avatarBart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20241217210310.645966-3-bvanassche@acm.org


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 48ea518d

block/blk-zoned.c

+4 −0
Original line number Diff line number Diff line
@@ -459,6 +459,8 @@ static inline void disk_put_zone_wplug(struct blk_zone_wplug *zwplug) 
static inline bool disk_should_remove_zone_wplug(struct gendisk *disk,

						 struct blk_zone_wplug *zwplug)

{

	lockdep_assert_held(&zwplug->lock);



	/* If the zone write plug was already removed, we are done. */

	if (zwplug->flags & BLK_ZONE_WPLUG_UNHASHED)

		return false;
@@ -913,6 +915,8 @@ static bool blk_zone_wplug_prepare_bio(struct blk_zone_wplug *zwplug, 
{

	struct gendisk *disk = bio->bi_bdev->bd_disk;



	lockdep_assert_held(&zwplug->lock);



	/*

	 * If we lost track of the zone write pointer due to a write error,

	 * the user must either execute a report zones, reset the zone or finish