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>

diff --git a/mm/slub.c b/mm/slub.c
index c5766e5..c4a9b89 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -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;
 }