[PATCH 04/15] block: add an API to atomically update queue limits

[Hannes Reinecke]

On 2/13/24 08:34, Christoph Hellwig wrote:
> 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 at lst.de>
> Reviewed-by: Damien Le Moal <dlemoal at kernel.org>
> ---
>   block/blk-core.c       |   1 +
>   block/blk-settings.c   | 228 ++++++++++++++++++++++++++++++++++-------
>   block/blk.h            |   2 +-
>   include/linux/blkdev.h |  23 +++++
>   4 files changed, 217 insertions(+), 37 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.de>

Cheers,

Hannes