---

yaml
---
r: 7677
b: refs/heads/master
c: b21a413
h: refs/heads/master
i:
  7675: 3b9447a
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f03a567054fea4f9d43c50ec91338266c0bd588d
+refs/heads/master: b21a41385118f9a6af3cd96ce71090c5ada52eb5

trunk/drivers/scsi/advansys.c

@@ -9200,8 +9200,8 @@ asc_prt_scsi_cmnd(struct scsi_cmnd *s)
         (unsigned) s->serial_number, s->retries, s->allowed);
 
     printk(
-" timeout_per_command %d, timeout_total %d, timeout %d\n",
-        s->timeout_per_command, s->timeout_total, s->timeout);
+" timeout_per_command %d\n",
+        s->timeout_per_command);
 
     printk(
 " scsi_done 0x%lx, done 0x%lx, host_scribble 0x%lx, result 0x%x\n",

trunk/drivers/scsi/scsi.c

@@ -268,6 +268,7 @@ struct scsi_cmnd *scsi_get_command(struct scsi_device *dev, int gfp_mask)
 	} else
 		put_device(&dev->sdev_gendev);
 
+	cmd->jiffies_at_alloc = jiffies;
 	return cmd;
 }				
 EXPORT_SYMBOL(scsi_get_command);
@@ -798,9 +799,23 @@ static void scsi_softirq(struct softirq_action *h)
 	while (!list_empty(&local_q)) {
 		struct scsi_cmnd *cmd = list_entry(local_q.next,
 						   struct scsi_cmnd, eh_entry);
+		/* The longest time any command should be outstanding is the
+		 * per command timeout multiplied by the number of retries.
+		 *
+		 * For a typical command, this is 2.5 minutes */
+		unsigned long wait_for 
+			= cmd->allowed * cmd->timeout_per_command;
 		list_del_init(&cmd->eh_entry);
 
 		disposition = scsi_decide_disposition(cmd);
+		if (disposition != SUCCESS &&
+		    time_before(cmd->jiffies_at_alloc + wait_for, jiffies)) {
+			dev_printk(KERN_ERR, &cmd->device->sdev_gendev, 
+				   "timing out command, waited %ds\n",
+				   wait_for/HZ);
+			disposition = SUCCESS;
+		}
+
 		scsi_log_completion(cmd, disposition);
 		switch (disposition) {
 		case SUCCESS:

trunk/include/scsi/scsi_cmnd.h

@@ -51,12 +51,16 @@ struct scsi_cmnd {
 	 * printk's to use ->pid, so that we can kill this field.
 	 */
 	unsigned long serial_number;
+	/*
+	 * This is set to jiffies as it was when the command was first
+	 * allocated.  It is used to time how long the command has
+	 * been outstanding
+	 */
+	unsigned long jiffies_at_alloc;
 
 	int retries;
 	int allowed;
 	int timeout_per_command;
-	int timeout_total;
-	int timeout;
 
 	unsigned char cmd_len;
 	unsigned char old_cmd_len;