Revision 02e768c9fe47618056d876b5137424763486d886 authored by Linus Torvalds on 15 September 2023, 19:38:44 UTC, committed by Linus Torvalds on 15 September 2023, 19:38:44 UTC
Pull selinux fix from Paul Moore: "A relatively small SELinux patch to fix an issue with a vfs/LSM/SELinux patch that went upstream during the recent merge window. The short version is that the original patch changed how we initialized mount options to resolve a NFS issue and we inadvertently broke a use case due to the changed behavior. The fix restores this behavior for the cases that require it while keeping the original NFS fix in place" * tag 'selinux-pr-20230914' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: fix handling of empty opts in selinux_fs_context_submount()
blk-mq-pci.c
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2016 Christoph Hellwig.
*/
#include <linux/kobject.h>
#include <linux/blkdev.h>
#include <linux/blk-mq-pci.h>
#include <linux/pci.h>
#include <linux/module.h>
#include "blk-mq.h"
/**
* blk_mq_pci_map_queues - provide a default queue mapping for PCI device
* @qmap: CPU to hardware queue map.
* @pdev: PCI device associated with @set.
* @offset: Offset to use for the pci irq vector
*
* This function assumes the PCI device @pdev has at least as many available
* 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.
*/
void 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 < qmap->nr_queues; queue++) {
mask = pci_irq_get_affinity(pdev, queue + offset);
if (!mask)
goto fallback;
for_each_cpu(cpu, mask)
qmap->mq_map[cpu] = qmap->queue_offset + queue;
}
return;
fallback:
WARN_ON_ONCE(qmap->nr_queues > 1);
blk_mq_clear_mq_map(qmap);
}
EXPORT_SYMBOL_GPL(blk_mq_pci_map_queues);
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