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From: Vlastimil Babka <vbabka@suse.cz>
Date: Thu, 29 Jul 2021 15:21:24 +0200
Subject: [PATCH 27/35] mm, slub: don't disable irqs in slub_cpu_dead()
slub_cpu_dead() cleans up for an offlined cpu from another cpu and calls only
functions that are now irq safe, so we don't need to disable irqs anymore.
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
mm/slub.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2537,14 +2537,10 @@ static void flush_all(struct kmem_cache
static int slub_cpu_dead(unsigned int cpu)
{
struct kmem_cache *s;
- unsigned long flags;
mutex_lock(&slab_mutex);
- list_for_each_entry(s, &slab_caches, list) {
- local_irq_save(flags);
+ list_for_each_entry(s, &slab_caches, list)
__flush_cpu_slab(s, cpu);
- local_irq_restore(flags);
- }
mutex_unlock(&slab_mutex);
return 0;
}
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