[PATCHv4 0/9] scsi: remove legacy cmd_list implementation

Hannes Reinecke
2019-11-18T09:22:35Z

Hi all,

with the switch to blk-mq we have an efficient way of looking up
outstanding commands via blk_mq_rq_busy_iter().
In this patchset the dpt_i2o and aacraid drivers are switched over
to using that function, and the now obsolete cmd_list implemantation
in the SCSI midlayer is removed.

As usual, comments and reviews are welcome.

Changes to v1:
- Fixup kbuild warning

Changes to v2:
- Add scsi_host_busy_iter()
- Include reviews from Christoph

Changes to v3:
- Include reviews from Christoph
- Add midlayer helper to terminate outstanding commands
- Split off aacraid modifcations into several patches

Hannes Reinecke (9):
dpt_i2o: rename adpt_i2o_to_scsi() to adpt_i2o_scsi_complete()
scsi: add scsi_host_flush_commands() helper
dpt_i2o: use scsi_host_flush_commands() to abort outstanding commands
aacraid: Do not wait for outstanding write commands on
synchronize_cache
aacraid: use midlayer helper to terminate outstanding commands
scsi: add scsi_host_busy_iter()
aacraid: use scsi_host_busy_iter() in aac_wait_for_io_completion()
aacraid: use scsi_host_busy_iter() in get_num_of_incomplete_fibs()
scsi: Remove cmd_list functionality

drivers/scsi/aacraid/aachba.c | 76 +-------------------------------------
drivers/scsi/aacraid/comminit.c | 30 +++++++--------
drivers/scsi/aacraid/commsup.c | 24 +-----------
drivers/scsi/aacraid/linit.c | 81 +++++++++++++++++++++--------------------
drivers/scsi/dpt_i2o.c | 25 ++-----------
drivers/scsi/dpti.h | 3 +-
drivers/scsi/hosts.c | 57 +++++++++++++++++++++++++++++
drivers/scsi/scsi.c | 14 -------
drivers/scsi/scsi_error.c | 1 -
drivers/scsi/scsi_lib.c | 31 ----------------
drivers/scsi/scsi_priv.h | 2 -
drivers/scsi/scsi_scan.c | 1 -
include/scsi/scsi_cmnd.h | 1 -
include/scsi/scsi_device.h | 1 -
include/scsi/scsi_host.h | 8 +++-
15 files changed, 125 insertions(+), 230 deletions(-)

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2.16.4