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

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

From: Vasily Gorbik <g...@linux.ibm.com>

[ 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 <seb...@linux.ibm.com>
Signed-off-by: Vasily Gorbik <g...@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidef...@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/s390/block/scm_blk.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -455,6 +455,7 @@ int scm_blk_dev_setup(struct scm_blk_dev
        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)


Reply via email to