[V2,0/5] scsi: fnic: use scsi_host_busy_iter to walk scsi commands

Message

Ming Lei April 23, 2021, 7:43 a.m. UTC

Hello Guys,

fnic uses the following way to walk scsi commands in failure handling,
which is obvious wrong, because caller of scsi_host_find_tag has to
guarantee that the tag is active.

        for (tag = 0; tag < fnic->fnic_max_tag_id; tag++) {
				...
                sc = scsi_host_find_tag(fnic->lport->host, tag);
				...
		}

Fix the issue by using scsi_host_busy_iter() to walk request/scsi_command.

Hannes has posted similar patch[1] before, however which depends on the scsi
reserved command patchset, so post them out in one standalone patchset,
another difference is that this one is splited to 5 single patches for
easy review.

[1] https://marc.info/?l=linux-scsi&m=161400059528859&w=2 


V2:
	- use scsi_host_busy_iter

Ming Lei (5):
  scsi: fnic: use scsi_host_busy_iter in fnic_terminate_rport_io
  scsi: fnic: use scsi_host_busy_iter in fnic_clean_pending_aborts
  scsi: fnic: use scsi_host_busy_iter in fnic_cleanup_io
  scsi: fnic: use scsi_host_busy_iter in fnic_rport_exch_reset
  scsi: fnic: use scsi_host_busy_iter in fnic_is_abts_pending

 drivers/scsi/fnic/fnic_scsi.c | 924 ++++++++++++++++++----------------
 1 file changed, 484 insertions(+), 440 deletions(-)