Blame SOURCES/irqbalance-1.7.0-Also-fetch-node-info-for-non-PCI-devices.patch
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From a1f83a563475bd77843c4b44ee44a7d764bc9bba Mon Sep 17 00:00:00 2001
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From: Kairui Song <kasong@redhat.com>
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Date: Thu, 28 Jan 2021 15:24:32 +0800
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Subject: [PATCH] Also fetch node info for non-PCI devices
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non-PCI devices could also be bind to a certain node. So if failed to
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fetch the info from sysfs, try to get it from /proc/irq/<irq>/node.
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---
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classify.c | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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diff --git a/classify.c b/classify.c
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index df8a89b..92f43cc 100644
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--- a/classify.c
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+++ b/classify.c
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@@ -395,7 +395,10 @@ static struct irq_info *add_one_irq_to_db(const char *devpath, int irq, struct u
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get_numa_node:
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numa_node = -1;
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if (numa_avail) {
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- sprintf(path, "%s/numa_node", devpath);
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+ if (devpath)
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+ sprintf(path, "%s/numa_node", devpath);
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+ else
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+ sprintf(path, "/proc/irq/%i/node", irq);
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fd = fopen(path, "r");
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if (fd) {
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fscanf(fd, "%d", &numa_node);
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--
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2.29.2
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