Re: [PATCH 16/16] scsi_dh_alua: Use workqueue for RTPG

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 04/29/2014 11:47 PM, Stewart, Sean wrote:
On Fri, 2014-01-31 at 10:30 +0100, Hannes Reinecke wrote:
@@ -797,37 +838,40 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg)
  		off = 8 + (ucp[7] * 4);
  	}

-	sdev_printk(KERN_INFO, sdev,
-		    "%s: port group %02x state %c %s supports %c%c%c%c%c%c%c\n",
-		    ALUA_DH_NAME, pg->group_id, print_alua_state(pg->state),
-		    pg->pref ? "preferred" : "non-preferred",
-		    valid_states&TPGS_SUPPORT_TRANSITION?'T':'t',
-		    valid_states&TPGS_SUPPORT_OFFLINE?'O':'o',
-		    valid_states&TPGS_SUPPORT_LBA_DEPENDENT?'L':'l',
-		    valid_states&TPGS_SUPPORT_UNAVAILABLE?'U':'u',
-		    valid_states&TPGS_SUPPORT_STANDBY?'S':'s',
-		    valid_states&TPGS_SUPPORT_NONOPTIMIZED?'N':'n',
-		    valid_states&TPGS_SUPPORT_OPTIMIZED?'A':'a');
Hannes,

I was wondering why this was changed from an sdev_printk to a printk? I
can see the AAS of a TPG on a target, but with it this way I do not know
with respect to what logical unit it is.

+	printk(KERN_INFO "%s: target %s port group %02x state %c %s "
+	       "supports %c%c%c%c%c%c%c\n", ALUA_DH_NAME, pg->target_id_str,
+	       pg->group_id, print_alua_state(pg->state),
+	       pg->pref ? "preferred" : "non-preferred",
+	       valid_states&TPGS_SUPPORT_TRANSITION?'T':'t',
+	       valid_states&TPGS_SUPPORT_OFFLINE?'O':'o',
+	       valid_states&TPGS_SUPPORT_LBA_DEPENDENT?'L':'l',
+	       valid_states&TPGS_SUPPORT_UNAVAILABLE?'U':'u',
+	       valid_states&TPGS_SUPPORT_STANDBY?'S':'s',
+	       valid_states&TPGS_SUPPORT_NONOPTIMIZED?'N':'n',
+	       valid_states&TPGS_SUPPORT_OPTIMIZED?'A':'a');



Reasoning was the the 'target port' is actually independent on the scsi device; there might be several scsi devices pointing to the same target port. So using 'sdev_printk' here wouldn't be entirely correct.

But you are right, we're losing the information about the LUN here.
So I'll be reverting that bit.

Cheers,

Hannes
--
Dr. Hannes Reinecke		      zSeries & Storage
hare@xxxxxxx			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux