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scsi: target: core: Abort all preempted regs if requested

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According to SPC the preempted commands shall be always aborted.

SPC-4: 5.12.11.2.6 Preempting and aborting

  c) all commands from the I_T nexus(es) associated with the persistent
  reservations or registrations being preempted (i.e., preempted commands)
  except the PERSISTENT RESERVE OUT command itself shall be aborted as
  defined in SAM-5;

Link: https://lore.kernel.org/r/20220909090425.14479-4-d.bogdanov@yadro.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Dmitry Bogdanov <d.bogdanov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Dmitry Bogdanov 2022-09-09 12:04:24 +03:00 committed by Martin K. Petersen
parent f050a7c66c
commit 49790e6a58
1 changed files with 15 additions and 1 deletions
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16
drivers/target/target_core_pr.c
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@ -2960,9 +2960,23 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
spin_unlock(&dev->dev_reservation_lock);
if (preempt_type == PREEMPT_AND_ABORT)
/*
* SPC-4 5.12.11.2.6 Preempting and aborting
* The actions described in this subclause shall be performed
* for all I_T nexuses that are registered with the non-zero
* SERVICE ACTION RESERVATION KEY value, without regard for
* whether the preempted I_T nexuses hold the persistent
* reservation. If the SERVICE ACTION RESERVATION KEY field is
* set to zero and an all registrants persistent reservation is
* present, the device server shall abort all commands for all
* registered I_T nexuses.
*/
if (preempt_type == PREEMPT_AND_ABORT) {
core_tmr_lun_reset(dev, NULL, &preempt_and_abort_list,
cmd);
core_scsi3_release_preempt_and_abort(
&preempt_and_abort_list, pr_reg_n);
}
if (pr_tmpl->pr_aptpl_active)
core_scsi3_update_and_write_aptpl(cmd->se_dev, true);