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mm/z3fold: remove redundant list_del_init of zhdr->buddy in z3fold_free

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do_compact_page() will do list_del_init(&zhdr->buddy) for us.  Remove this
extra one to save some possible cpu cycles.

Link: https://lkml.kernel.org/r/20220308134311.59086-8-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2022-04-28 23:16:06 -07:00 committed by akpm
parent 5e36c25b2c
commit 52fb90cc19
1 changed files with 0 additions and 3 deletions
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3
mm/z3fold.c
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@ -1244,9 +1244,6 @@ static void z3fold_free(struct z3fold_pool *pool, unsigned long handle)
return;
}
if (zhdr->cpu < 0 || !cpu_online(zhdr->cpu)) {
spin_lock(&pool->lock);
list_del_init(&zhdr->buddy);
spin_unlock(&pool->lock);
zhdr->cpu = -1;
kref_get(&zhdr->refcount);
clear_bit(PAGE_CLAIMED, &page->private);