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cleancache: constify cleancache_ops structure

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The cleancache_ops structure is never modified, so declare it as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <[email protected]>
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
This commit is contained in:
Julia Lawall 2016-01-21 16:47:29 +01:00 • committed by Konrad Rzeszutek Wilk
commit b3c6de492b
3 changed files with 4 additions and 4 deletions
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4
mm/cleancache.c
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@ -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;