Re: [PATCH V4 04/12] sbitmap: move allocation hint into sbitmap

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On 11/16/20 10:07 AM, Ming Lei wrote:
Allocation hint should have belonged to sbitmap, also when sbitmap's
depth is high and no need to use mulitple wakeup queues, user can
benefit from percpu allocation hint too.

So move allocation hint into sbitmap, then scsi device queue can benefit
from allocation hint when converting to plain sbitmap in the following
patches.

Cc: Omar Sandoval <osandov@xxxxxx>
Cc: Kashyap Desai <kashyap.desai@xxxxxxxxxxxx>
Cc: Sumanesh Samanta <sumanesh.samanta@xxxxxxxxxxxx>
Cc: Ewan D. Milne <emilne@xxxxxxxxxx>
Cc: Hannes Reinecke <hare@xxxxxxx>
Tested-by: Sumanesh Samanta <sumanesh.samanta@xxxxxxxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
---
  block/blk-mq.c          |   2 +-
  block/kyber-iosched.c   |   2 +-
  include/linux/sbitmap.h |  41 +++++++++------
  lib/sbitmap.c           | 112 +++++++++++++++++++++++-----------------
  4 files changed, 94 insertions(+), 63 deletions(-)

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                Kernel Storage Architect
hare@xxxxxxx                              +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer



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