[PATCH 4.18 058/228] s390/dasd: correct numa_node in dasd_alloc_queue

From: Greg Kroah-Hartman
Date: Tue Oct 02 2018 - 09:27:33 EST


4.18-stable review patch. If anyone has any objections, please let me know.

------------------

From: Vasily Gorbik <gor@xxxxxxxxxxxxx>

[ Upstream commit b17e3abb0af404cb62ad4ef1a5962f58b06e2b78 ]

The numa_node field of the tag_set struct has to be explicitly
initialized, otherwise it stays as 0, which is a valid numa node id and
cause memory allocation failure if node 0 is offline.

Acked-by: Stefan Haberland <sth@xxxxxxxxxxxxx>
Signed-off-by: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/s390/block/dasd.c | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -3127,6 +3127,7 @@ static int dasd_alloc_queue(struct dasd_
block->tag_set.nr_hw_queues = nr_hw_queues;
block->tag_set.queue_depth = queue_depth;
block->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;
+ block->tag_set.numa_node = NUMA_NO_NODE;

rc = blk_mq_alloc_tag_set(&block->tag_set);
if (rc)