[PATCH AUTOSEL 4.14 45/87] s390/scm_blk: correct numa_node in scm_blk_dev_setup

From: Sasha Levin
Date: Sun Sep 16 2018 - 23:22:41 EST


From: Vasily Gorbik <gor@xxxxxxxxxxxxx>

[ Upstream commit d642d6262f4fcfa5d200ec6e218c17f0c15b3390 ]

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: Sebastian Ott <sebott@xxxxxxxxxxxxx>
Signed-off-by: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
drivers/s390/block/scm_blk.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index eb51893c74a4..5c944ee76ec1 100644
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -454,6 +454,7 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
bdev->tag_set.nr_hw_queues = nr_requests;
bdev->tag_set.queue_depth = nr_requests_per_io * nr_requests;
bdev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;
+ bdev->tag_set.numa_node = NUMA_NO_NODE;

ret = blk_mq_alloc_tag_set(&bdev->tag_set);
if (ret)
--
2.17.1