mm: zsmalloc: constify struct zs_pool name

Constify `struct zs_pool' ->name.

[akpm@inux-foundation.org: constify zpool_create_pool()'s `type' arg also]
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Dan Streetman <ddstreet@ieee.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/include/linux/zpool.h b/include/linux/zpool.h
index 1f405be..2e97b77 100644 (file)
--- a/include/linux/zpool.h
+++ b/include/linux/zpool.h
@@ -38,7 +38,7 @@ enum zpool_mapmode {
 
 bool zpool_has_pool(char *type);
 
-struct zpool *zpool_create_pool(char *type, char *name,
+struct zpool *zpool_create_pool(const char *type, const char *name,
                        gfp_t gfp, const struct zpool_ops *ops);
 
 const char *zpool_get_type(struct zpool *pool);
@@ -83,7 +83,9 @@ struct zpool_driver {
        atomic_t refcount;
        struct list_head list;
 
-       void *(*create)(char *name, gfp_t gfp, const struct zpool_ops *ops,
+       void *(*create)(const char *name,
+                       gfp_t gfp,
+                       const struct zpool_ops *ops,
                        struct zpool *zpool);
        void (*destroy)(void *pool);
 

diff --git a/include/linux/zsmalloc.h b/include/linux/zsmalloc.h
index 6398dfa..34eb160 100644 (file)
--- a/include/linux/zsmalloc.h
+++ b/include/linux/zsmalloc.h
@@ -41,7 +41,7 @@ struct zs_pool_stats {
 
 struct zs_pool;
 
-struct zs_pool *zs_create_pool(char *name, gfp_t flags);
+struct zs_pool *zs_create_pool(const char *name, gfp_t flags);
 void zs_destroy_pool(struct zs_pool *pool);
 
 unsigned long zs_malloc(struct zs_pool *pool, size_t size);

diff --git a/mm/zbud.c b/mm/zbud.c
index fa48bcd..d8a181f 100644 (file)
--- a/mm/zbud.c
+++ b/mm/zbud.c
@@ -137,7 +137,7 @@ static const struct zbud_ops zbud_zpool_ops = {
        .evict =        zbud_zpool_evict
 };
 
-static void *zbud_zpool_create(char *name, gfp_t gfp,
+static void *zbud_zpool_create(const char *name, gfp_t gfp,
                               const struct zpool_ops *zpool_ops,
                               struct zpool *zpool)
 {

diff --git a/mm/zpool.c b/mm/zpool.c
index 13f524d..fd3ff71 100644 (file)
--- a/mm/zpool.c
+++ b/mm/zpool.c
@@ -72,7 +72,7 @@ int zpool_unregister_driver(struct zpool_driver *driver)
 EXPORT_SYMBOL(zpool_unregister_driver);
 
 /* this assumes @type is null-terminated. */
-static struct zpool_driver *zpool_get_driver(char *type)
+static struct zpool_driver *zpool_get_driver(const char *type)
 {
        struct zpool_driver *driver;
 
@@ -150,7 +150,7 @@ EXPORT_SYMBOL(zpool_has_pool);
  *
  * Returns: New zpool on success, NULL on failure.
  */
-struct zpool *zpool_create_pool(char *type, char *name, gfp_t gfp,
+struct zpool *zpool_create_pool(const char *type, const char *name, gfp_t gfp,
                const struct zpool_ops *ops)
 {
        struct zpool_driver *driver;

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index f135b1b..8b8e0da 100644 (file)
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -237,7 +237,7 @@ struct link_free {
 };
 
 struct zs_pool {
-       char *name;
+       const char *name;
 
        struct size_class **size_class;
        struct kmem_cache *handle_cachep;
@@ -311,7 +311,7 @@ static void record_obj(unsigned long handle, unsigned long obj)
 
 #ifdef CONFIG_ZPOOL
 
-static void *zs_zpool_create(char *name, gfp_t gfp,
+static void *zs_zpool_create(const char *name, gfp_t gfp,
                             const struct zpool_ops *zpool_ops,
                             struct zpool *zpool)
 {
@@ -548,7 +548,7 @@ static const struct file_operations zs_stat_size_ops = {
        .release        = single_release,
 };
 
-static int zs_pool_stat_create(char *name, struct zs_pool *pool)
+static int zs_pool_stat_create(const char *name, struct zs_pool *pool)
 {
        struct dentry *entry;
 
@@ -588,7 +588,7 @@ static void __exit zs_stat_exit(void)
 {
 }
 
-static inline int zs_pool_stat_create(char *name, struct zs_pool *pool)
+static inline int zs_pool_stat_create(const char *name, struct zs_pool *pool)
 {
        return 0;
 }
@@ -1866,7 +1866,7 @@ static int zs_register_shrinker(struct zs_pool *pool)
  * On success, a pointer to the newly created pool is returned,
  * otherwise NULL.
  */
-struct zs_pool *zs_create_pool(char *name, gfp_t flags)
+struct zs_pool *zs_create_pool(const char *name, gfp_t flags)
 {
        int i;
        struct zs_pool *pool;