4.18-stable review patch. If anyone has any objections, please let me know.
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From: Vasily Gorbik gor@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 sebott@linux.ibm.com Signed-off-by: Vasily Gorbik gor@linux.ibm.com Signed-off-by: Martin Schwidefsky schwidefsky@de.ibm.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@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)