[PATCH v4 27/35] mm, slub: don't disable irqs in slub_cpu_dead()
From: Vlastimil Babka <hidden>
Date: 2021-08-05 15:24:56
Also in:
lkml
Subsystem:
memory management, slab allocator, the rest · Maintainers:
Andrew Morton, Vlastimil Babka, Harry Yoo, Linus Torvalds
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 <redacted> --- mm/slub.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c
index b8581a9b58cc..c10f2c9b9352 100644
--- a/mm/slub.c
+++ b/mm/slub.c@@ -2537,14 +2537,10 @@ 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; }
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2.32.0