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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>
This commit is contained in:
Vlastimil Babka 2021-05-21 01:48:56 +02:00
parent 7cf9f3ba2f
commit 0e7ac738f7
1 changed files with 1 additions and 5 deletions
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6
mm/slub.c
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@ -2554,14 +2554,10 @@ static void flush_all(struct kmem_cache *s)
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;
}