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-rw-r--r--block/blk-mq.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 8550ad64982f..b123077a0dc4 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -3137,6 +3137,25 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
}
EXPORT_SYMBOL(blk_mq_init_queue);
+struct gendisk *__blk_mq_alloc_disk(struct blk_mq_tag_set *set, void *queuedata)
+{
+ struct request_queue *q;
+ struct gendisk *disk;
+
+ q = blk_mq_init_queue_data(set, queuedata);
+ if (IS_ERR(q))
+ return ERR_CAST(q);
+
+ disk = __alloc_disk_node(0, set->numa_node);
+ if (!disk) {
+ blk_cleanup_queue(q);
+ return ERR_PTR(-ENOMEM);
+ }
+ disk->queue = q;
+ return disk;
+}
+EXPORT_SYMBOL(__blk_mq_alloc_disk);
+
/*
* Helper for setting up a queue with mq ops, given queue depth, and
* the passed in mq ops flags.