Re: [PATCHv6 1/3] block: move elevator queue allocation logic into blk_mq_init_sched
From: Hannes Reinecke <hare@suse.de>
Date: 2025-06-30 06:17:43
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 <redacted> Signed-off-by: Nilay Shroff <redacted> --- 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 SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich