[PATCH 1/2] mm: zpool: Constify the zpool_ops

[Krzysztof Kozlowski]

The structure zpool_ops is not modified so make the pointer to it as
pointer to const.

Signed-off-by: Krzysztof Kozlowski <k.kozlow...@samsung.com>
---
 include/linux/zpool.h | 4 ++--
 mm/zbud.c             | 4 ++--
 mm/zpool.c            | 4 ++--
 mm/zsmalloc.c         | 3 ++-
 mm/zswap.c            | 2 +-
 5 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/include/linux/zpool.h b/include/linux/zpool.h
index d30eff3d84d5..c924a28d9805 100644
--- a/include/linux/zpool.h
+++ b/include/linux/zpool.h
@@ -37,7 +37,7 @@ enum zpool_mapmode {
 };
 
 struct zpool *zpool_create_pool(char *type, char *name,
-                       gfp_t gfp, struct zpool_ops *ops);
+                       gfp_t gfp, const struct zpool_ops *ops);
 
 char *zpool_get_type(struct zpool *pool);
 
@@ -81,7 +81,7 @@ struct zpool_driver {
        atomic_t refcount;
        struct list_head list;
 
-       void *(*create)(char *name, gfp_t gfp, struct zpool_ops *ops,
+       void *(*create)(char *name, gfp_t gfp, const struct zpool_ops *ops,
                        struct zpool *zpool);
        void (*destroy)(void *pool);
 
diff --git a/mm/zbud.c b/mm/zbud.c
index f3bf6f7627d8..6f8158d64864 100644
--- a/mm/zbud.c
+++ b/mm/zbud.c
@@ -99,7 +99,7 @@ struct zbud_pool {
        struct zbud_ops *ops;
 #ifdef CONFIG_ZPOOL
        struct zpool *zpool;
-       struct zpool_ops *zpool_ops;
+       const struct zpool_ops *zpool_ops;
 #endif
 };
 
@@ -138,7 +138,7 @@ static struct zbud_ops zbud_zpool_ops = {
 };
 
 static void *zbud_zpool_create(char *name, gfp_t gfp,
-                              struct zpool_ops *zpool_ops,
+                              const struct zpool_ops *zpool_ops,
                               struct zpool *zpool)
 {
        struct zbud_pool *pool;
diff --git a/mm/zpool.c b/mm/zpool.c
index 722a4f60e90b..951db32b833f 100644
--- a/mm/zpool.c
+++ b/mm/zpool.c
@@ -22,7 +22,7 @@ struct zpool {
 
        struct zpool_driver *driver;
        void *pool;
-       struct zpool_ops *ops;
+       const struct zpool_ops *ops;
 
        struct list_head list;
 };
@@ -115,7 +115,7 @@ static void zpool_put_driver(struct zpool_driver *driver)
  * Returns: New zpool on success, NULL on failure.
  */
 struct zpool *zpool_create_pool(char *type, char *name, gfp_t gfp,
-               struct zpool_ops *ops)
+               const struct zpool_ops *ops)
 {
        struct zpool_driver *driver;
        struct zpool *zpool;
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 0a7f81aa2249..6e139d381d80 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -309,7 +309,8 @@ static void record_obj(unsigned long handle, unsigned long 
obj)
 
 #ifdef CONFIG_ZPOOL
 
-static void *zs_zpool_create(char *name, gfp_t gfp, struct zpool_ops 
*zpool_ops,
+static void *zs_zpool_create(char *name, gfp_t gfp,
+                            const struct zpool_ops *zpool_ops,
                             struct zpool *zpool)
 {
        return zs_create_pool(name, gfp);
diff --git a/mm/zswap.c b/mm/zswap.c
index 2d5727baed59..017a3f50725d 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -816,7 +816,7 @@ static void zswap_frontswap_invalidate_area(unsigned type)
        zswap_trees[type] = NULL;
 }
 
-static struct zpool_ops zswap_zpool_ops = {
+static const struct zpool_ops zswap_zpool_ops = {
        .evict = zswap_writeback_entry
 };
 
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/