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| author | Julia Lawall <julia.lawall@lip6.fr> | 2016-01-21 18:47:29 +0300 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2016-01-27 17:09:57 +0300 |
| commit | b3c6de492b9ea30a8dcc535d4dc2eaaf0bb3f116 (patch) | |
| tree | 66aa2045b592d7cdcf0006bc64e2786398e7615d | |
| parent | afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc (diff) | |
| download | linux-b3c6de492b9ea30a8dcc535d4dc2eaaf0bb3f116.tar.xz | |
cleancache: constify cleancache_ops structure
The cleancache_ops structure is never modified, so declare it as const.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| -rw-r--r-- | drivers/xen/tmem.c | 2 | ||||
| -rw-r--r-- | include/linux/cleancache.h | 2 | ||||
| -rw-r--r-- | mm/cleancache.c | 4 |
3 files changed, 4 insertions, 4 deletions
diff --git a/drivers/xen/tmem.c b/drivers/xen/tmem.c index 945fc4327201..4ac2ca8a7656 100644 --- a/drivers/xen/tmem.c +++ b/drivers/xen/tmem.c @@ -242,7 +242,7 @@ static int tmem_cleancache_init_shared_fs(char *uuid, size_t pagesize) return xen_tmem_new_pool(shared_uuid, TMEM_POOL_SHARED, pagesize); } -static struct cleancache_ops tmem_cleancache_ops = { +static const struct cleancache_ops tmem_cleancache_ops = { .put_page = tmem_cleancache_put_page, .get_page = tmem_cleancache_get_page, .invalidate_page = tmem_cleancache_flush_page, diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h index bda5ec0b4b4d..cb3e14234502 100644 --- a/include/linux/cleancache.h +++ b/include/linux/cleancache.h @@ -37,7 +37,7 @@ struct cleancache_ops { void (*invalidate_fs)(int); }; -extern int cleancache_register_ops(struct cleancache_ops *ops); +extern int cleancache_register_ops(const struct cleancache_ops *ops); extern void __cleancache_init_fs(struct super_block *); extern void __cleancache_init_shared_fs(struct super_block *); extern int __cleancache_get_page(struct page *); diff --git a/mm/cleancache.c b/mm/cleancache.c index 8fc50811119b..ba5d8f3e6d68 100644 --- a/mm/cleancache.c +++ b/mm/cleancache.c @@ -22,7 +22,7 @@ * cleancache_ops is set by cleancache_register_ops to contain the pointers * to the cleancache "backend" implementation functions. */ -static struct cleancache_ops *cleancache_ops __read_mostly; +static const struct cleancache_ops *cleancache_ops __read_mostly; /* * Counters available via /sys/kernel/debug/cleancache (if debugfs is @@ -49,7 +49,7 @@ static void cleancache_register_ops_sb(struct super_block *sb, void *unused) /* * Register operations for cleancache. Returns 0 on success. */ -int cleancache_register_ops(struct cleancache_ops *ops) +int cleancache_register_ops(const struct cleancache_ops *ops) { if (cmpxchg(&cleancache_ops, NULL, ops)) return -EBUSY; |