Linux mainline-5.13 uses sbitmap to track the queue depth of SCSI devices. This patch set backports the mainline patches to OLK-5.10 and fixes some KABI issues.
Tests on scsi_debug show that this method can improve IO performance by more than 30%.
Bart Van Assche (2): scsi: sbitmap: Silence a debug kernel warning triggered by sbitmap_put() scsi: core: Fix scsi_device_max_queue_depth()
Kashyap Desai (1): scsi: megaraid_sas: Replace sdev_busy with local counter
Ming Lei (13): scsi: sbitmap: Remove sbitmap_clear_bit_unlock scsi: sbitmap: Maintain allocation round_robin in sbitmap scsi: sbitmap: Add helpers for updating allocation hint scsi: sbitmap: Move allocation hint into sbitmap scsi: sbitmap: Export sbitmap_weight scsi: sbitmap: Add sbitmap_calculate_shift() helper scsi: blk-mq: Add callbacks for storing & retrieving budget token scsi: blk-mq: Return budget token from .get_budget callback scsi: core: Put hot fields of scsi_host_template in one cacheline scsi: core: Add scsi_device_busy() wrapper scsi: core: Make sure sdev->queue_depth is <= max(shost->can_queue, 1024) scsi: core: Replace sdev->device_busy with sbitmap scsi: blk-mq: Fix build warning when making htmldocs
Pavel Begunkov (1): sbitmap: optimise sbitmap_deferred_clear()
Zheng Qixing (4): sbitmap: fix kabi broken by adding struct sbitmap_extend sbitmap: fix kabi broken in struct blk_mq_ops and struct scsi_cmnd sbitmap: fix kabi broken in struct scsi_host_template sbitmap: fix kabi broken in struct scsi_device
block/blk-mq-sched.c | 17 +- block/blk-mq.c | 38 ++- block/blk-mq.h | 25 +- block/kyber-iosched.c | 3 +- drivers/message/fusion/mptsas.c | 2 +- drivers/scsi/megaraid/megaraid_sas.h | 2 + drivers/scsi/megaraid/megaraid_sas_fusion.c | 47 +++- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 2 +- drivers/scsi/scsi.c | 13 ++ drivers/scsi/scsi_lib.c | 71 ++++-- drivers/scsi/scsi_priv.h | 3 + drivers/scsi/scsi_scan.c | 45 +++- drivers/scsi/scsi_sysfs.c | 4 +- drivers/scsi/sg.c | 2 +- drivers/vhost/scsi.c | 4 +- include/linux/blk-mq.h | 38 +-- include/linux/sbitmap.h | 91 ++++++-- include/scsi/scsi_cmnd.h | 2 +- include/scsi/scsi_device.h | 13 +- include/scsi/scsi_host.h | 113 ++++----- lib/sbitmap.c | 243 +++++++++++--------- 21 files changed, 518 insertions(+), 260 deletions(-)