[v3,00/51] Remove the request pointer from struct scsi_cmnd

Message ID 20210524030856.2824-1-bvanassche@acm.org
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Series
  • Remove the request pointer from struct scsi_cmnd
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Message

Bart Van Assche May 24, 2021, 3:08 a.m.
Hi Martin,

This patch series implements the following two changes for all SCSI drivers:
- Use blk_mq_rq_from_pdu() instead of the request member of struct scsi_cmnd
  since adding an offset to a pointer is faster than pointer indirection.
- Remove the request pointer from struct scsi_cmnd.

Please consider this patch series for kernel v5.14.

Thanks,

Bart.

Changes compared to v2:
- Added a patch for the aha1542 driver since a recent change introduced a
  scsi_cmnd.request dereference in that driver.
- In patch 2, renamed a local variable in a macro from 'rq' into '__rq'.  
- Added several more Acked-by tags.

Changes compared to v1:
- Renamed blk_req() into scsi_cmd_to_rq().
- Added several Acked-by tags.

Bart Van Assche (51):
  core: Introduce the scsi_cmd_to_rq() function
  core: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  sd: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  sr: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  scsi_transport_fc: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  scsi_transport_spi: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  ata: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  RDMA/iser: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  RDMA/srp: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  zfcp: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  53c700: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  NCR5380: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  aacraid: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  advansys: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  aha1542: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  bnx2i: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  csiostor: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  cxlflash: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  dpt_i2o: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  fnic: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  hisi_sas: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  hpsa: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  ibmvfc: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  ibmvscsi: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  ips: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  libsas: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  lpfc: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  megaraid: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  mpt3sas: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  mvumi: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  myrb: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  myrs: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  ncr53c8xx: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  qedf: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  qedi: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  qla1280: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  qla2xxx: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  qla4xxx: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  qlogicpti: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  scsi_debug: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  smartpqi: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  snic: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  stex: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  sun3_scsi: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  sym53c8xx: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  ufs: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  virtio_scsi: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  xen-scsifront: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  tcm_loop: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  usb-storage: Use scsi_cmd_to_rq() instead of scsi_cmnd.request
  core: Remove the request member from struct scsi_cmnd

 drivers/ata/libata-eh.c                     |  5 +-
 drivers/ata/libata-scsi.c                   | 10 ++--
 drivers/ata/pata_falcon.c                   |  4 +-
 drivers/infiniband/ulp/iser/iser_memory.c   |  2 +-
 drivers/infiniband/ulp/srp/ib_srp.c         |  6 +-
 drivers/s390/scsi/zfcp_fsf.c                |  2 +-
 drivers/scsi/53c700.c                       |  2 +-
 drivers/scsi/NCR5380.c                      |  6 +-
 drivers/scsi/aacraid/aachba.c               |  2 +-
 drivers/scsi/aacraid/commsup.c              |  2 +-
 drivers/scsi/advansys.c                     |  4 +-
 drivers/scsi/aha1542.c                      |  6 +-
 drivers/scsi/bnx2i/bnx2i_hwi.c              |  2 +-
 drivers/scsi/csiostor/csio_scsi.c           |  6 +-
 drivers/scsi/cxlflash/main.c                |  2 +-
 drivers/scsi/dpt_i2o.c                      |  4 +-
 drivers/scsi/fnic/fnic_scsi.c               | 49 ++++++++--------
 drivers/scsi/hisi_sas/hisi_sas_main.c       |  4 +-
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c      |  2 +-
 drivers/scsi/hpsa.c                         |  6 +-
 drivers/scsi/ibmvscsi/ibmvfc.c              |  2 +-
 drivers/scsi/ibmvscsi/ibmvscsi.c            |  2 +-
 drivers/scsi/ips.c                          |  2 +-
 drivers/scsi/libsas/sas_ata.c               |  2 +-
 drivers/scsi/libsas/sas_scsi_host.c         |  2 +-
 drivers/scsi/lpfc/lpfc_scsi.c               | 63 ++++++++++-----------
 drivers/scsi/megaraid/megaraid_sas_base.c   |  4 +-
 drivers/scsi/megaraid/megaraid_sas_fusion.c | 10 ++--
 drivers/scsi/mpt3sas/mpt3sas_base.c         |  4 +-
 drivers/scsi/mpt3sas/mpt3sas_scsih.c        |  6 +-
 drivers/scsi/mvumi.c                        |  2 +-
 drivers/scsi/myrb.c                         | 11 ++--
 drivers/scsi/myrs.c                         | 11 ++--
 drivers/scsi/ncr53c8xx.c                    |  4 +-
 drivers/scsi/qedf/qedf_io.c                 |  8 +--
 drivers/scsi/qedi/qedi_fw.c                 |  9 +--
 drivers/scsi/qla1280.c                      |  6 +-
 drivers/scsi/qla2xxx/qla_os.c               |  4 +-
 drivers/scsi/qla4xxx/ql4_iocb.c             |  2 +-
 drivers/scsi/qla4xxx/ql4_os.c               |  4 +-
 drivers/scsi/qlogicpti.c                    |  2 +-
 drivers/scsi/scsi.c                         |  2 +-
 drivers/scsi/scsi_debug.c                   | 13 +++--
 drivers/scsi/scsi_error.c                   | 15 +++--
 drivers/scsi/scsi_lib.c                     | 29 +++++-----
 drivers/scsi/scsi_logging.c                 | 18 +++---
 drivers/scsi/scsi_transport_fc.c            |  2 +-
 drivers/scsi/scsi_transport_spi.c           |  2 +-
 drivers/scsi/sd.c                           | 33 +++++------
 drivers/scsi/sd_zbc.c                       | 10 ++--
 drivers/scsi/smartpqi/smartpqi_init.c       |  4 +-
 drivers/scsi/snic/snic_scsi.c               | 10 ++--
 drivers/scsi/sr.c                           | 13 ++---
 drivers/scsi/stex.c                         |  6 +-
 drivers/scsi/sun3_scsi.c                    |  2 +-
 drivers/scsi/sym53c8xx_2/sym_glue.c         |  4 +-
 drivers/scsi/ufs/ufshcd.c                   | 28 ++++-----
 drivers/scsi/virtio_scsi.c                  |  4 +-
 drivers/scsi/xen-scsifront.c                |  2 +-
 drivers/target/loopback/tcm_loop.c          |  4 +-
 drivers/usb/storage/transport.c             |  2 +-
 include/scsi/scsi_cmnd.h                    | 15 +++--
 include/scsi/scsi_device.h                  | 16 +++---
 63 files changed, 259 insertions(+), 261 deletions(-)