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-pci.c | 22 +++++++---------------
1 files changed, 7 insertions(+), 15 deletions(-)
diff --git a/kernel/block/blk-mq-pci.c b/kernel/block/blk-mq-pci.c
index db644ec..b595a94 100644
--- a/kernel/block/blk-mq-pci.c
+++ b/kernel/block/blk-mq-pci.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/kobject.h>
#include <linux/blkdev.h>
@@ -21,7 +13,7 @@
/**
* blk_mq_pci_map_queues - provide a default queue mapping for PCI device
- * @set: tagset to provide the mapping for
+ * @qmap: CPU to hardware queue map.
* @pdev: PCI device associated with @set.
* @offset: Offset to use for the pci irq vector
*
@@ -31,26 +23,26 @@
* that maps a queue to the CPUs that have irq affinity for the corresponding
* vector.
*/
-int blk_mq_pci_map_queues(struct blk_mq_tag_set *set, struct pci_dev *pdev,
+int blk_mq_pci_map_queues(struct blk_mq_queue_map *qmap, struct pci_dev *pdev,
int offset)
{
const struct cpumask *mask;
unsigned int queue, cpu;
- for (queue = 0; queue < set->nr_hw_queues; queue++) {
+ for (queue = 0; queue < qmap->nr_queues; queue++) {
mask = pci_irq_get_affinity(pdev, queue + offset);
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:
- WARN_ON_ONCE(set->nr_hw_queues > 1);
- blk_mq_clear_mq_map(set);
+ WARN_ON_ONCE(qmap->nr_queues > 1);
+ blk_mq_clear_mq_map(qmap);
return 0;
}
EXPORT_SYMBOL_GPL(blk_mq_pci_map_queues);
--
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