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| author |  Christoph Hellwig <hch@lst.de>
| 2024-02-28 14:56:40 -0800 |
|---|---|---|
| committer |  Jens Axboe <axboe@kernel.dk>
| 2024-03-01 08:54:42 -0700 |
| commit | 631d4efb8009df64deae8c1382b8cf43879a4e22 (patch) | |
| tree | 5a1cb6d6c1223c895fd9baa6a5db958994195f41 | |
| parent | Merge tag 'md-6.9-20240301' of https://git.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
| download | linux-631d4efb8009df64deae8c1382b8cf43879a4e22.tar.gz linux-631d4efb8009df64deae8c1382b8cf43879a4e22.tar.bz2 linux-631d4efb8009df64deae8c1382b8cf43879a4e22.zip | |
block: add a queue_limits_set helper
Add a small wrapper around queue_limits_commit_update for stacking
drivers that don't want to update existing limits, but set an
entirely new set.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240228225653.947152-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk-settings.c | 18 | ||||
| -rw-r--r-- | include/linux/blkdev.h | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c index b6bbe683d218..1989a177be20 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -267,6 +267,24 @@ int queue_limits_commit_update(struct request_queue *q, EXPORT_SYMBOL_GPL(queue_limits_commit_update); /** + * queue_limits_commit_set - apply queue limits to queue + * @q: queue to update + * @lim: limits to apply + * + * Apply the limits in @lim that were freshly initialized to @q. + * To update existing limits use queue_limits_start_update() and + * queue_limits_commit_update() instead. + * + * Returns 0 if successful, else a negative error code. + */ +int queue_limits_set(struct request_queue *q, struct queue_limits *lim) +{ + mutex_lock(&q->limits_lock); + return queue_limits_commit_update(q, lim); +} +EXPORT_SYMBOL_GPL(queue_limits_set); + +/** * blk_queue_bounce_limit - set bounce buffer limit for queue * @q: the request queue for the device * @bounce: bounce limit to enforce diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index a14ea9344138..dd510ad7ce4b 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -889,6 +889,7 @@ queue_limits_start_update(struct request_queue *q) } int queue_limits_commit_update(struct request_queue *q, struct queue_limits *lim); +int queue_limits_set(struct request_queue *q, struct queue_limits *lim); /* * Access functions for manipulating queue properties |