From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/block/blk-mq-virtio.c | 24 ++++++++----------------
1 files changed, 8 insertions(+), 16 deletions(-)
diff --git a/kernel/block/blk-mq-virtio.c b/kernel/block/blk-mq-virtio.c
index a111b06..78b2b4f 100644
--- a/kernel/block/blk-mq-virtio.c
+++ b/kernel/block/blk-mq-virtio.c
@@ -1,14 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2016 Christoph Hellwig.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
*/
#include <linux/device.h>
#include <linux/blk-mq.h>
@@ -19,17 +11,17 @@
/**
* blk_mq_virtio_map_queues - provide a default queue mapping for virtio device
- * @set: tagset to provide the mapping for
- * @vdev: virtio device associated with @set.
+ * @qmap: CPU to hardware queue map.
+ * @vdev: virtio device to provide a mapping for.
* @first_vec: first interrupt vectors to use for queues (usually 0)
*
* This function assumes the virtio device @vdev has at least as many available
- * interrupt vetors as @set has queues. It will then queuery the vector
+ * interrupt vectors as @set has queues. It will then query the vector
* corresponding to each queue for it's affinity mask and built queue mapping
* that maps a queue to the CPUs that have irq affinity for the corresponding
* vector.
*/
-int blk_mq_virtio_map_queues(struct blk_mq_tag_set *set,
+int blk_mq_virtio_map_queues(struct blk_mq_queue_map *qmap,
struct virtio_device *vdev, int first_vec)
{
const struct cpumask *mask;
@@ -38,18 +30,18 @@
if (!vdev->config->get_vq_affinity)
goto fallback;
- for (queue = 0; queue < set->nr_hw_queues; queue++) {
+ for (queue = 0; queue < qmap->nr_queues; queue++) {
mask = vdev->config->get_vq_affinity(vdev, first_vec + queue);
if (!mask)
goto fallback;
for_each_cpu(cpu, mask)
- set->mq_map[cpu] = queue;
+ qmap->mq_map[cpu] = qmap->queue_offset + queue;
}
return 0;
fallback:
- return blk_mq_map_queues(set);
+ return blk_mq_map_queues(qmap);
}
EXPORT_SYMBOL_GPL(blk_mq_virtio_map_queues);
--
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