Re: [PATCHv6 1/3] block: move elevator queue allocation logic into blk_mq_init_sched

[Hannes Reinecke <hare@suse.de>]

On 6/30/25 07:21, Nilay Shroff wrote:
> In preparation for allocating sched_tags before freezing the request
> queue and acquiring ->elevator_lock, move the elevator queue allocation
> logic from the elevator ops ->init_sched callback into blk_mq_init_sched.
> As elevator_alloc is now only invoked from block layer core, we don't
> need to export it, so unexport elevator_alloc function.
> 
> This refactoring provides a centralized location for elevator queue
> initialization, which makes it easier to store pre-allocated sched_tags
> in the struct elevator_queue during later changes.
> 
> Reviewed-by: Ming Lei <ming.lei@redhat.com>
> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
> ---
>   block/bfq-iosched.c   | 13 +++----------
>   block/blk-mq-sched.c  | 11 ++++++++---
>   block/elevator.c      |  1 -
>   block/elevator.h      |  2 +-
>   block/kyber-iosched.c | 11 ++---------
>   block/mq-deadline.c   | 14 ++------------
>   6 files changed, 16 insertions(+), 36 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@suse.de                                +49 911 74053 688
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