diff options
| author | Christoph Hellwig <hch@lst.de> | 2025-01-10 06:47:10 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-01-10 07:29:23 -0700 |
| commit | aa427d7b73b196f657d6d2cf0e94eff6b883fdef (patch) | |
| tree | 67695b7a106e1c3672fdfbd15a8cb32322b85099 /block/blk-settings.c | |
| parent | 9c96821b44f893fb63f021a28625d3b32c68e8b3 (diff) | |
block: add a queue_limits_commit_update_frozen helper
Add a helper that freezes the queue, updates the queue limits and
unfreezes the queue and convert all open coded versions of that to the
new helper.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20250110054726.1499538-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-settings.c')
| -rw-r--r-- | block/blk-settings.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c index 89d8366fd43c..6c96a73261d1 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -445,6 +445,30 @@ out_unlock: EXPORT_SYMBOL_GPL(queue_limits_commit_update); /** + * queue_limits_commit_update_frozen - commit an atomic update of queue limits + * @q: queue to update + * @lim: limits to apply + * + * Apply the limits in @lim that were obtained from queue_limits_start_update() + * and updated with the new values by the caller to @q. Freezes the queue + * before the update and unfreezes it after. + * + * Returns 0 if successful, else a negative error code. + */ +int queue_limits_commit_update_frozen(struct request_queue *q, + struct queue_limits *lim) +{ + int ret; + + blk_mq_freeze_queue(q); + ret = queue_limits_commit_update(q, lim); + blk_mq_unfreeze_queue(q); + + return ret; +} +EXPORT_SYMBOL_GPL(queue_limits_commit_update_frozen); + +/** * queue_limits_set - apply queue limits to queue * @q: queue to update * @lim: limits to apply |