Hi, Hannes:
I'm sorry that I don't know why you didn't consider my former patch
below which not only raises the minimum valid value of 'eh_deadline'
as '0' for your former patchset but also includes some fix for your
this patchset:
http://www.spinics.net/lists/linux-scsi/msg69361.html
If you think I'd post the minimum value issue as a improvement when
your patchset is accepted, I've no problem;-)
On 10/31/2013 09:02 PM, Hannes Reinecke wrote:
+void
+scmd_eh_abort_handler(struct work_struct *work)
+{
+ struct scsi_cmnd *scmd =
+ container_of(work, struct scsi_cmnd, abort_work.work);
+ struct scsi_device *sdev = scmd->device;
+ unsigned long flags;
+ int rtn;
+
+ spin_lock_irqsave(sdev->host->host_lock, flags);
+ if (scsi_host_eh_past_deadline(sdev->host)) {
+ spin_unlock_irqrestore(sdev->host->host_lock, flags);
+ SCSI_LOG_ERROR_RECOVERY(3,
+ scmd_printk(KERN_INFO, scmd,
+ "scmd %p eh timeout, not aborting\n",
+ scmd));
+ } else {
+ spin_unlock_irqrestore(sdev->host->host_lock, flags);
+ SCSI_LOG_ERROR_RECOVERY(3,
+ scmd_printk(KERN_INFO, scmd,
+ "aborting command %p\n", scmd));
+ rtn = scsi_try_to_abort_cmd(sdev->host->hostt, scmd);
+ if (rtn == SUCCESS) {
+ scmd->result |= DID_TIME_OUT<< 16;
+ if (!scsi_noretry_cmd(scmd)&&
+ (++scmd->retries<= scmd->allowed)) {
scsi_host_eh_past_deadline() should also be checked here before long
term retrying.
+ SCSI_LOG_ERROR_RECOVERY(3,
+ scmd_printk(KERN_WARNING, scmd,
+ "scmd %p retry "
+ "aborted command\n", scmd));
+ scsi_queue_insert(scmd, SCSI_MLQUEUE_EH_RETRY);
+ } else {
+ SCSI_LOG_ERROR_RECOVERY(3,
+ scmd_printk(KERN_WARNING, scmd,
+ "scmd %p finish "
+ "aborted command\n", scmd));
+ scsi_finish_command(scmd);
+ }
+ return;
+ }
+ SCSI_LOG_ERROR_RECOVERY(3,
+ scmd_printk(KERN_INFO, scmd,
+ "scmd %p abort failed, rtn %d\n",
+ scmd, rtn));
+ }
+
+ if (scsi_eh_scmd_add(scmd, 0)) {
scsi_finish_command() should be invoked if scsi_eh_scmd_add() is
returned on failure.
Thanks,
Ren
+ SCSI_LOG_ERROR_RECOVERY(3,
+ scmd_printk(KERN_WARNING, scmd,
+ "scmd %p terminate "
+ "aborted command\n", scmd));
+ scmd->result |= DID_TIME_OUT<< 16;
+ scsi_finish_command(scmd);
+ }
+}
<snip>
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