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    Subject[PATCH v6 26/33] mm, slub: don't disable irqs in slub_cpu_dead()
    Date
    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>
    ---
    mm/slub.c | 6 +-----
    1 file changed, 1 insertion(+), 5 deletions(-)

    diff --git a/mm/slub.c b/mm/slub.c
    index c5766e504e73..c4a9b8901576 100644
    --- 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;
    }
    --
    2.33.0
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