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| author |   Christoph Hellwig <hch@lst.de> | 2024-02-13 08:34:14 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2024-02-13 08:56:59 -0700 |
| commit | d690cb8ae14bd377d422b7905b6959c7e7a45b95 (patch) | |
| tree | c909d6c4f74dfd4c69ba78d57aa8d737d9515cf3 /block/blk-core.c | |
| parent | block: decouple blk_set_stacking_limits from blk_set_default_limits (diff) | |
| download | wireguard-linux-d690cb8ae14bd377d422b7905b6959c7e7a45b95.tar.xz wireguard-linux-d690cb8ae14bd377d422b7905b6959c7e7a45b95.zip | |
block: add an API to atomically update queue limits
Add a new queue_limits_{start,commit}_update pair of functions that
allows taking an atomic snapshot of queue limits, update it, and
commit it if it passes validity checking. Also use the low-level
validation helper to implement blk_set_default_limits instead of
duplicating the initialization.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20240213073425.1621680-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 2b11d8325fde..cb56724a8dfb 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -425,6 +425,7 @@ struct request_queue *blk_alloc_queue(int node_id) mutex_init(&q->debugfs_mutex); mutex_init(&q->sysfs_lock); mutex_init(&q->sysfs_dir_lock); + mutex_init(&q->limits_lock); mutex_init(&q->rq_qos_mutex); spin_lock_init(&q->queue_lock); |