Merge git://git.kvack.org/~bcrl/aio-fixes

[mirror_ubuntu-bionic-kernel.git] / mm / mempool.c

diff --git a/mm/mempool.c b/mm/mempool.c
index 659aa42bad1621756878dc41ce65e3cbd86ed0fb..905434f18c9738a18cd20364131a952336325411 100644 (file)
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -304,9 +304,9 @@ void mempool_free(void *element, mempool_t *pool)
         * ensures that there will be frees which return elements to the
         * pool waking up the waiters.
         */
-       if (pool->curr_nr < pool->min_nr) {
+       if (unlikely(pool->curr_nr < pool->min_nr)) {
                spin_lock_irqsave(&pool->lock, flags);
-               if (pool->curr_nr < pool->min_nr) {
+               if (likely(pool->curr_nr < pool->min_nr)) {
                        add_element(pool, element);
                        spin_unlock_irqrestore(&pool->lock, flags);
                        wake_up(&pool->wait);