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blk-zoned: Document locking assumptions 

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

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20241217210310.645966-3-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
pull/1131/head
Bart Van Assche 2024-12-17 13:03:08 -08:00 committed by Jens Axboe
parent 48ea518d00
commit cbac56e523
1 changed files with 4 additions and 0 deletions
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4
block/blk-zoned.c
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@ -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, static inline bool disk_should_remove_zone_wplug(struct gendisk *disk,
struct blk_zone_wplug *zwplug) struct blk_zone_wplug *zwplug)
{ {
lockdep_assert_held(&zwplug->lock);
/* If the zone write plug was already removed, we are done. */ /* If the zone write plug was already removed, we are done. */
if (zwplug->flags & BLK_ZONE_WPLUG_UNHASHED) if (zwplug->flags & BLK_ZONE_WPLUG_UNHASHED)
return false; 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; 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, * 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 * the user must either execute a report zones, reset the zone or finish