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 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@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/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)