add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/block/blk-mq-rdma.c
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@@ -1,14 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0
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 /*
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  * Copyright (c) 2017 Sagi Grimberg.
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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  */
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 #include <linux/blk-mq.h>
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 #include <linux/blk-mq-rdma.h>
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@@ -16,8 +8,8 @@
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8
 
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 /**
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  * blk_mq_rdma_map_queues - provide a default queue mapping for rdma device
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- * @set:	tagset to provide the mapping for
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- * @dev:	rdma device associated with @set.
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+ * @map:	CPU to hardware queue map.
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+ * @dev:	rdma device to provide a mapping for.
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  * @first_vec:	first interrupt vectors to use for queues (usually 0)
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  *
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  * This function assumes the rdma device @dev has at least as many available
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@@ -29,24 +21,24 @@
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  * @set->nr_hw_queues, or @dev does not provide an affinity mask for a
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  * vector, we fallback to the naive mapping.
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  */
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-int blk_mq_rdma_map_queues(struct blk_mq_tag_set *set,
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+int blk_mq_rdma_map_queues(struct blk_mq_queue_map *map,
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 		struct ib_device *dev, int first_vec)
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 {
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 	const struct cpumask *mask;
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 	unsigned int queue, cpu;
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-	for (queue = 0; queue < set->nr_hw_queues; queue++) {
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+	for (queue = 0; queue < map->nr_queues; queue++) {
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 		mask = ib_get_vector_affinity(dev, first_vec + queue);
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 		if (!mask)
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 			goto fallback;
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 		for_each_cpu(cpu, mask)
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-			set->mq_map[cpu] = queue;
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+			map->mq_map[cpu] = map->queue_offset + queue;
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 	}
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 	return 0;
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 fallback:
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-	return blk_mq_map_queues(set);
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+	return blk_mq_map_queues(map);
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 }
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 EXPORT_SYMBOL_GPL(blk_mq_rdma_map_queues);