To detect if a failed command has been retried we must not
clear scmd->eh_eflags when EH finishes.
The flag should be persistent throughout the lifetime
of the command.
Signed-off-by: Hannes Reinecke <h...@suse.de>
---
Documentation/scsi/scsi_eh.txt | 3 ---
drivers/scsi/scsi_error.c | 4 ++--
include/scsi/scsi_eh.h | 1 +
3 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/Documentation/scsi/scsi_eh.txt b/Documentation/scsi/scsi_eh.txt
index 8638f61..745eed5 100644
--- a/Documentation/scsi/scsi_eh.txt
+++ b/Documentation/scsi/scsi_eh.txt
@@ -264,7 +264,6 @@ scmd->allowed.
3. scmd recovered
ACTION: scsi_eh_finish_cmd() is invoked to EH-finish scmd
- shost->host_failed--
- - clear scmd->eh_eflags
- scsi_setup_cmd_retry()
- move from local eh_work_q to local eh_done_q
LOCKING: none
@@ -452,8 +451,6 @@ except for #1 must be implemented by eh_strategy_handler().
- shost->host_failed is zero.
- - Each scmd's eh_eflags field is cleared.
-
- Each scmd is in such a state that scsi_setup_cmd_retry() on the
scmd doesn't make any difference.
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index deb35737..eb0f19f 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -182,7 +182,6 @@ scsi_abort_command(struct scsi_cmnd *scmd)
/*
* Retry after abort failed, escalate to next level.
*/
- scmd->eh_eflags &= ~SCSI_EH_ABORT_SCHEDULED;
SCSI_LOG_ERROR_RECOVERY(3,
scmd_printk(KERN_INFO, scmd,
"previous abort failed\n"));
@@ -919,6 +918,7 @@ void scsi_eh_prep_cmnd(struct scsi_cmnd *scmd, struct
scsi_eh_save *ses,
ses->result = scmd->result;
ses->underflow = scmd->underflow;
ses->prot_op = scmd->prot_op;
+ ses->eh_eflags = scmd->eh_eflags;
scmd->prot_op = SCSI_PROT_NORMAL;
scmd->eh_eflags = 0;
@@ -982,6 +982,7 @@ void scsi_eh_restore_cmnd(struct scsi_cmnd* scmd, struct
scsi_eh_save *ses)
scmd->result = ses->result;
scmd->underflow = ses->underflow;
scmd->prot_op = ses->prot_op;
+ scmd->eh_eflags = ses->eh_eflags;
}
EXPORT_SYMBOL(scsi_eh_restore_cmnd);
@@ -1115,7 +1116,6 @@ static int scsi_eh_action(struct scsi_cmnd *scmd, int rtn)
void scsi_eh_finish_cmd(struct scsi_cmnd *scmd, struct list_head *done_q)
{
scmd->device->host->host_failed--;
- scmd->eh_eflags = 0;
list_move_tail(&scmd->eh_entry, done_q);
}
EXPORT_SYMBOL(scsi_eh_finish_cmd);
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index dbb8c64..f2f876c 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -30,6 +30,7 @@ extern int scsi_ioctl_reset(struct scsi_device *, int __user
*);
struct scsi_eh_save {
/* saved state */
int result;
+ int eh_eflags;
enum dma_data_direction data_direction;
unsigned underflow;
unsigned char cmd_len;
--
1.8.5.6
--
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