This is a note to let you know that I've just added the patch titled
qla1280: Don't allocate 512kb of host tags
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
qla1280-don-t-allocate-512kb-of-host-tags.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2bcbc81421c511ef117cadcf0bee9c4340e68db0 Mon Sep 17 00:00:00 2001
From: Johannes Thumshirn <jthumshirn@xxxxxxx>
Date: Wed, 27 Apr 2016 10:48:52 +0200
Subject: qla1280: Don't allocate 512kb of host tags
From: Johannes Thumshirn <jthumshirn@xxxxxxx>
commit 2bcbc81421c511ef117cadcf0bee9c4340e68db0 upstream.
The qla1280 driver sets the scsi_host_template's can_queue field to 0xfffff
which results in an allocation failure when allocating the block layer tags
for the driver's queues. This was introduced with the change for host wide
tags in commit 64d513ac31b - "scsi: use host wide tags by default".
Reduce can_queue to MAX_OUTSTANDING_COMMANDS (512) to solve the allocation
error.
Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
Fixes: 64d513ac31b - "scsi: use host wide tags by default"
Cc: Laura Abbott <labbott@xxxxxxxxxx>
Cc: Michael Reed <mdr@xxxxxxx>
Reviewed-by: Laurence Oberman <loberman@xxxxxxxxxx>
Reviewed-by: Lee Duncan <lduncan@xxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: James Bottomley <jejb@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/qla1280.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -4214,7 +4214,7 @@ static struct scsi_host_template qla1280
.eh_bus_reset_handler = qla1280_eh_bus_reset,
.eh_host_reset_handler = qla1280_eh_adapter_reset,
.bios_param = qla1280_biosparam,
- .can_queue = 0xfffff,
+ .can_queue = MAX_OUTSTANDING_COMMANDS,
.this_id = -1,
.sg_tablesize = SG_ALL,
.use_clustering = ENABLE_CLUSTERING,
Patches currently in stable-queue which might be from jthumshirn@xxxxxxx are
queue-4.4/qla1280-don-t-allocate-512kb-of-host-tags.patch
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