tree c909d6c4f74dfd4c69ba78d57aa8d737d9515cf3
parent c490f226a0ea22639e81ac34edc884e238ea955a
author Christoph Hellwig <hch@lst.de> 1707809654 +0100
committer Jens Axboe <axboe@kernel.dk> 1707839819 -0700

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>