summaryrefslogtreecommitdiff
path: root/drivers/scsi/scsi_lib.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c29
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index f0ee11dc07e4..4e49469b6c53 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -669,6 +669,23 @@ static void scsi_io_completion_reprep(struct scsi_cmnd *cmd,
scsi_mq_requeue_cmd(cmd);
}
+static bool scsi_cmd_runtime_exceeced(struct scsi_cmnd *cmd)
+{
+ struct request *req = cmd->request;
+ unsigned long wait_for;
+
+ if (cmd->allowed == SCSI_CMD_RETRIES_NO_LIMIT)
+ return false;
+
+ wait_for = (cmd->allowed + 1) * req->timeout;
+ if (time_before(cmd->jiffies_at_alloc + wait_for, jiffies)) {
+ scmd_printk(KERN_ERR, cmd, "timing out command, waited %lus\n",
+ wait_for/HZ);
+ return true;
+ }
+ return false;
+}
+
/* Helper for scsi_io_completion() when special action required. */
static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result)
{
@@ -677,7 +694,6 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result)
int level = 0;
enum {ACTION_FAIL, ACTION_REPREP, ACTION_RETRY,
ACTION_DELAYED_RETRY} action;
- unsigned long wait_for = (cmd->allowed + 1) * req->timeout;
struct scsi_sense_hdr sshdr;
bool sense_valid;
bool sense_current = true; /* false implies "deferred sense" */
@@ -782,8 +798,7 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result)
} else
action = ACTION_FAIL;
- if (action != ACTION_FAIL &&
- time_before(cmd->jiffies_at_alloc + wait_for, jiffies))
+ if (action != ACTION_FAIL && scsi_cmd_runtime_exceeced(cmd))
action = ACTION_FAIL;
switch (action) {
@@ -1456,7 +1471,6 @@ static bool scsi_mq_lld_busy(struct request_queue *q)
static void scsi_softirq_done(struct request *rq)
{
struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
- unsigned long wait_for = (cmd->allowed + 1) * rq->timeout;
int disposition;
INIT_LIST_HEAD(&cmd->eh_entry);
@@ -1466,13 +1480,8 @@ static void scsi_softirq_done(struct request *rq)
atomic_inc(&cmd->device->ioerr_cnt);
disposition = scsi_decide_disposition(cmd);
- if (disposition != SUCCESS &&
- time_before(cmd->jiffies_at_alloc + wait_for, jiffies)) {
- scmd_printk(KERN_ERR, cmd,
- "timing out command, waited %lus\n",
- wait_for/HZ);
+ if (disposition != SUCCESS && scsi_cmd_runtime_exceeced(cmd))
disposition = SUCCESS;
- }
scsi_log_completion(cmd, disposition);