82 lines
2.7 KiB
Diff
82 lines
2.7 KiB
Diff
From 384cdfa4ef28415c3df50d1759951a20c6f0661f Mon Sep 17 00:00:00 2001
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From: caomeng <caomeng5@huawei.com>
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Date: Thu, 4 Jul 2019 03:47:20 +0800
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Subject: [PATCH] bugfix-fix-two-same-irq-insert-to-list
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When the function force_rebalance_irq is executed,the same irq may be added into
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rebalance_irq_list again, resulting in failed irqbalance service. Thus, a function
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named irq_in_rebalance_list which is used to check if the irq is in rebalance_irq_list
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will be executed before force_rebalance_irq. And this patch fixex the bug introduced
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by feature-introduce-verifyhint-to-detect-hint-variation.patch.
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---
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classify.c | 11 +++++++++++
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irqbalance.h | 2 +-
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procinterrupts.c | 8 ++++++--
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3 files changed, 18 insertions(+), 3 deletions(-)
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diff --git a/classify.c b/classify.c
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index 0951c72..4d699da 100644
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--- a/classify.c
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+++ b/classify.c
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@@ -288,6 +288,17 @@ static void add_banned_irq(int irq, GList **list)
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return;
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}
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+int irq_in_rebalance_list(int irq)
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+{
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+ GList *entry = NULL;
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+ struct irq_info find = {0};
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+
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+ find.irq = irq;
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+ entry = g_list_find_custom(rebalance_irq_list, &find, compare_ints);
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+
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+ return entry ? 1 : 0;
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+}
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+
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void add_cl_banned_irq(int irq)
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{
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add_banned_irq(irq, &cl_banned_irqs);
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diff --git a/irqbalance.h b/irqbalance.h
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index 80ec017..821de0e 100644
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--- a/irqbalance.h
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+++ b/irqbalance.h
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@@ -107,7 +107,7 @@ extern void free_cl_opts(void);
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extern void add_cl_banned_module(char *modname);
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#define irq_numa_node(irq) ((irq)->numa_node)
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extern void force_rebalance_irq(struct irq_info *info, void *data __attribute__((unused)));
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-
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+int irq_in_rebalance_list(int irq);
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/* huawei */
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extern struct irq_info *build_one_dev_entry(const char *dirname, GList *tmp_list);
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extern void find_irq_dev_path(int irq, char *dirname, int length);
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diff --git a/procinterrupts.c b/procinterrupts.c
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index fc4641a..9e38e49 100644
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--- a/procinterrupts.c
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+++ b/procinterrupts.c
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@@ -348,7 +348,9 @@ void parse_proc_interrupts(void)
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*/
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if (count < info->irq_count) {
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log(TO_CONSOLE, LOG_INFO, "Removed and reinserted IRQ %d added into rebalance list\n", number);
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- force_rebalance_irq(info, NULL);
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+ if (!irq_in_rebalance_list(info->irq)) {
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+ force_rebalance_irq(info, NULL);
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+ }
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}
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info->last_irq_count = info->irq_count;
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@@ -602,7 +604,9 @@ void update_affinity_hint(struct irq_info *info, void *data __attribute__((unuse
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cpumask_parse_user(line, len, current_affinity_hint);
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if (!cpus_equal(current_affinity_hint, info->affinity_hint)) {
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cpumask_copy(info->affinity_hint, current_affinity_hint);
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- force_rebalance_irq(info, data);
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+ if (!irq_in_rebalance_list(info->irq)) {
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+ force_rebalance_irq(info, data);
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+ }
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log(TO_ALL, LOG_INFO, "IRQ(%d): affinity hint modified\n", info->irq);
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}
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}
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--
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1.8.3.1
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