mempool: add @gfp_mask to mempool_create_node()

mempool_create_node() currently assumes %GFP_KERNEL.  Its only user,
blk_init_free_list(), is about to be updated to use other allocation
flags - add @gfp_mask argument to the function.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 7 insertions, 5 deletions

diff --git a/mm/mempool.c b/mm/mempool.c
index d9049811f352..54990476c049 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -63,19 +63,21 @@ EXPORT_SYMBOL(mempool_destroy);
 mempool_t *mempool_create(int min_nr, mempool_alloc_t *alloc_fn,
                                 mempool_free_t *free_fn, void *pool_data)
 {
-        return  mempool_create_node(min_nr,alloc_fn,free_fn, pool_data,-1);
+        return mempool_create_node(min_nr,alloc_fn,free_fn, pool_data,
+                                   GFP_KERNEL, NUMA_NO_NODE);
 }
 EXPORT_SYMBOL(mempool_create);
 
 mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
-                        mempool_free_t *free_fn, void *pool_data, int node_id)
+                               mempool_free_t *free_fn, void *pool_data,
+                               gfp_t gfp_mask, int node_id)
 {
         mempool_t *pool;
-        pool = kmalloc_node(sizeof(*pool), GFP_KERNEL | __GFP_ZERO, node_id);
+        pool = kmalloc_node(sizeof(*pool), gfp_mask | __GFP_ZERO, node_id);
         if (!pool)
                 return NULL;
         pool->elements = kmalloc_node(min_nr * sizeof(void *),
-                                        GFP_KERNEL, node_id);
+                                      gfp_mask, node_id);
         if (!pool->elements) {
                 kfree(pool);
                 return NULL;
@@ -93,7 +95,7 @@ mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
         while (pool->curr_nr < pool->min_nr) {
                 void *element;
 
-                element = pool->alloc(GFP_KERNEL, pool->pool_data);
+                element = pool->alloc(gfp_mask, pool->pool_data);
                 if (unlikely(!element)) {
                         mempool_destroy(pool);
                         return NULL;