On Thu 21-06-18 15:03:32, Jia-Ju Bai wrote:
> The argument "gfp_t flags" is not used in kasan_unpoison_element()
> and remove_element(), so remove it.
yeah, seems like left over from 9b75a867cc9d ("mm: mempool: kasan: don't
poot mempool objects in quarantine")
> Signed-off-by: Jia-Ju Bai <baijiaju1990@xxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
> ---
> mm/mempool.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/mm/mempool.c b/mm/mempool.c
> index 5c9dce34719b..3076ab3f7bc4 100644
> --- a/mm/mempool.c
> +++ b/mm/mempool.c
> @@ -111,7 +111,7 @@ static __always_inline void kasan_poison_element(mempool_t *pool, void *element)
> kasan_free_pages(element, (unsigned long)pool->pool_data);
> }
>
> -static void kasan_unpoison_element(mempool_t *pool, void *element, gfp_t flags)
> +static void kasan_unpoison_element(mempool_t *pool, void *element)
> {
> if (pool->alloc == mempool_alloc_slab || pool->alloc == mempool_kmalloc)
> kasan_unpoison_slab(element);
> @@ -127,12 +127,12 @@ static __always_inline void add_element(mempool_t *pool, void *element)
> pool->elements[pool->curr_nr++] = element;
> }
>
> -static void *remove_element(mempool_t *pool, gfp_t flags)
> +static void *remove_element(mempool_t *pool)
> {
> void *element = pool->elements[--pool->curr_nr];
>
> BUG_ON(pool->curr_nr < 0);
> - kasan_unpoison_element(pool, element, flags);
> + kasan_unpoison_element(pool, element);
> check_element(pool, element);
> return element;
> }
> @@ -151,7 +151,7 @@ void mempool_destroy(mempool_t *pool)
> return;
>
> while (pool->curr_nr) {
> - void *element = remove_element(pool, GFP_KERNEL);
> + void *element = remove_element(pool);
> pool->free(element, pool->pool_data);
> }
> kfree(pool->elements);
> @@ -247,7 +247,7 @@ int mempool_resize(mempool_t *pool, int new_min_nr)
> spin_lock_irqsave(&pool->lock, flags);
> if (new_min_nr <= pool->min_nr) {
> while (new_min_nr < pool->curr_nr) {
> - element = remove_element(pool, GFP_KERNEL);
> + element = remove_element(pool);
> spin_unlock_irqrestore(&pool->lock, flags);
> pool->free(element, pool->pool_data);
> spin_lock_irqsave(&pool->lock, flags);
> @@ -333,7 +333,7 @@ void *mempool_alloc(mempool_t *pool, gfp_t gfp_mask)
>
> spin_lock_irqsave(&pool->lock, flags);
> if (likely(pool->curr_nr)) {
> - element = remove_element(pool, gfp_temp);
> + element = remove_element(pool);
> spin_unlock_irqrestore(&pool->lock, flags);
> /* paired with rmb in mempool_free(), read comment there */
> smp_wmb();
> --
> 2.17.0
--
Michal Hocko
SUSE Labs
