mm/mempool.c: remove unused argument in kasan_unpoison_element() and remove_element()

The argument "gfp_t flags" is not used in kasan_unpoison_element() and
remove_element(), so remove it.

Link: http://lkml.kernel.org/r/20180621070332.16633-1-baijiaju1990@gmail.com
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/mempool.c b/mm/mempool.c
index b54f2c2..44f5fa9 100644 (file)
--- 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 @@ static void *remove_element(mempool_t *pool, gfp_t flags)
 void mempool_exit(mempool_t *pool)
 {
        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);
@@ -301,7 +301,7 @@ 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);
@@ -387,7 +387,7 @@ repeat_alloc:
 
        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();