From c83db4f419e7105af38cdcca80cc51213214a2c8 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Tue, 8 Sep 2015 15:05:06 -0700 Subject: [PATCH] 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 Acked-by: Dan Streetman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/zbud.h | 2 +- mm/zbud.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/linux/zbud.h b/include/linux/zbud.h index f9d41a6e361f..e183a0a65ac1 100644 --- 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 index 6f8158d64864..fa48bcdff9d5 100644 --- 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; -- 2.20.1