mm: zbud: constify the zbud_ops

The structure zbud_ops is not modified so make the pointer to it a pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Dan Streetman <ddstreet@ieee.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mariux64 · Sep 8, 2015 · c83db4f · c83db4f
1 parent 7867277
commit c83db4f
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/include/linux/zbud.h b/include/linux/zbud.h
@@ -9,7 +9,7 @@ struct zbud_ops {
 	int (*evict)(struct zbud_pool *pool, unsigned long handle);
 };
 
-struct zbud_pool *zbud_create_pool(gfp_t gfp, struct zbud_ops *ops);
+struct zbud_pool *zbud_create_pool(gfp_t gfp, const struct zbud_ops *ops);
 void zbud_destroy_pool(struct zbud_pool *pool);
 int zbud_alloc(struct zbud_pool *pool, size_t size, gfp_t gfp,
 	unsigned long *handle);

diff --git a/mm/zbud.c b/mm/zbud.c
@@ -96,7 +96,7 @@ struct zbud_pool {
 	struct list_head buddied;
 	struct list_head lru;
 	u64 pages_nr;
-	struct zbud_ops *ops;
+	const struct zbud_ops *ops;
 #ifdef CONFIG_ZPOOL
 	struct zpool *zpool;
 	const struct zpool_ops *zpool_ops;
@@ -133,7 +133,7 @@ static int zbud_zpool_evict(struct zbud_pool *pool, unsigned long handle)
 		return -ENOENT;
 }
 
-static struct zbud_ops zbud_zpool_ops = {
+static const struct zbud_ops zbud_zpool_ops = {
 	.evict =	zbud_zpool_evict
 };
 
@@ -302,7 +302,7 @@ static int num_free_chunks(struct zbud_header *zhdr)
  * Return: pointer to the new zbud pool or NULL if the metadata allocation
  * failed.
  */
-struct zbud_pool *zbud_create_pool(gfp_t gfp, struct zbud_ops *ops)
+struct zbud_pool *zbud_create_pool(gfp_t gfp, const struct zbud_ops *ops)
 {
 	struct zbud_pool *pool;
 	int i;