linux-toradex.git/block/blk.h, branch v5.18

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2022-03-25T02:37:53+00:00

Pull SCSI updates from James Bottomley:
 "This series consists of the usual driver updates (qla2xxx, pm8001,
  libsas, smartpqi, scsi_debug, lpfc, iscsi, mpi3mr) plus minor updates
  and bug fixes.

  The high blast radius core update is the removal of write same, which
  affects block and several non-SCSI devices. The other big change,
  which is more local, is the removal of the SCSI pointer"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (281 commits)
  scsi: scsi_ioctl: Drop needless assignment in sg_io()
  scsi: bsg: Drop needless assignment in scsi_bsg_sg_io_fn()
  scsi: lpfc: Copyright updates for 14.2.0.0 patches
  scsi: lpfc: Update lpfc version to 14.2.0.0
  scsi: lpfc: SLI path split: Refactor BSG paths
  scsi: lpfc: SLI path split: Refactor Abort paths
  scsi: lpfc: SLI path split: Refactor SCSI paths
  scsi: lpfc: SLI path split: Refactor CT paths
  scsi: lpfc: SLI path split: Refactor misc ELS paths
  scsi: lpfc: SLI path split: Refactor VMID paths
  scsi: lpfc: SLI path split: Refactor FDISC paths
  scsi: lpfc: SLI path split: Refactor LS_RJT paths
  scsi: lpfc: SLI path split: Refactor LS_ACC paths
  scsi: lpfc: SLI path split: Refactor the RSCN/SCR/RDF/EDC/FARPR paths
  scsi: lpfc: SLI path split: Refactor PLOGI/PRLI/ADISC/LOGO paths
  scsi: lpfc: SLI path split: Refactor base ELS paths and the FLOGI path
  scsi: lpfc: SLI path split: Introduce lpfc_prep_wqe
  scsi: lpfc: SLI path split: Refactor fast and slow paths to native SLI4
  scsi: lpfc: SLI path split: Refactor lpfc_iocbq
  scsi: lpfc: Use kcalloc()
  ...

blk-mq: do not include passthrough requests in I/O accounting

2022-03-09T02:39:52+00:00

I/O accounting buckets I/O into the read/write/discard categories into
which passthrough I/O does not fit at all.  It also accounts to the
block_device, which may not even exist for passthrough I/O.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Bart Van Assche 
Reviewed-by: Chaitanya Kulkarni 
Reviewed-by: Martin K. Petersen 
Link: https://lore.kernel.org/r/20220308055200.735835-2-hch@lst.de
Signed-off-by: Jens Axboe

scsi: block: Remove REQ_OP_WRITE_SAME support

2022-02-23T02:11:08+00:00

No more users of REQ_OP_WRITE_SAME or drivers implementing it are left,
so remove the infrastructure.

[mkp: fold in and tweak sysfs reporting fix]

Link: https://lore.kernel.org/r/20220209082828.2629273-8-hch@lst.de
Reviewed-by: Chaitanya Kulkarni 
Signed-off-by: Christoph Hellwig 
Signed-off-by: Martin K. Petersen

block: don't check bio in blk_throtl_dispatch_work_fn

2022-02-17T02:42:28+00:00

The bio has been checked already before throttling, so no need to check
it again before dispatching it from throttle queue.

Add a helper of submit_bio_noacct_nocheck() for this purpose.

Signed-off-by: Ming Lei 
Reviewed-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20220216044514.2903784-5-ming.lei@redhat.com
Signed-off-by: Jens Axboe

block: don't declare submit_bio_checks in local header

2022-02-17T02:42:28+00:00

submit_bio_checks() won't be called outside of block/blk-core.c any more
since commit 9d497e2941c3 ("block: don't protect submit_bio_checks by
q_usage_counter"), so mark it as one local helper.

Reviewed-by: Christoph Hellwig 
Signed-off-by: Ming Lei 
Reviewed-by: Chaitanya Kulkarni 
Link: https://lore.kernel.org/r/20220216044514.2903784-4-ming.lei@redhat.com
Signed-off-by: Jens Axboe

block: pass a block_device and opf to blk_next_bio

2022-02-02T14:49:59+00:00

All callers need to set the block_device and operation, so lift that into
the common code.

Signed-off-by: Chaitanya Kulkarni 
Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20220124091107.642561-15-hch@lst.de
Signed-off-by: Jens Axboe

block: move blk_drop_partitions to blk.h

2022-02-02T14:49:58+00:00

No need to have this declaration in a public header.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Chaitanya Kulkarni 
Reviewed-by: Martin K. Petersen 
Link: https://lore.kernel.org/r/20220124093913.742411-3-hch@lst.de
Signed-off-by: Jens Axboe

block: move disk_{block,unblock,flush}_events to blk.h

2022-02-02T14:49:58+00:00

No need to have these declarations in a public header.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Chaitanya Kulkarni 
Reviewed-by: Martin K. Petersen 
Link: https://lore.kernel.org/r/20220124093913.742411-2-hch@lst.de
Signed-off-by: Jens Axboe

block: only build the icq tracking code when needed

2021-12-16T17:59:02+00:00

Only bfq needs to code to track icq, so make it conditional.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Link: https://lore.kernel.org/r/20211209063131.18537-12-hch@lst.de
Signed-off-by: Jens Axboe

blk-mq: move srcu from blk_mq_hw_ctx to request_queue

2021-12-03T21:51:29+00:00

In case of BLK_MQ_F_BLOCKING, per-hctx srcu is used to protect dispatch
critical area. However, this srcu instance stays at the end of hctx, and
it often takes standalone cacheline, often cold.

Inside srcu_read_lock() and srcu_read_unlock(), WRITE is always done on
the indirect percpu variable which is allocated from heap instead of
being embedded, srcu->srcu_idx is read only in srcu_read_lock(). It
doesn't matter if srcu structure stays in hctx or request queue.

So switch to per-request-queue srcu for protecting dispatch, and this
way simplifies quiesce a lot, not mention quiesce is always done on the
request queue wide.

Signed-off-by: Ming Lei 
Link: https://lore.kernel.org/r/20211203131534.3668411-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe