cleancache: constify cleancache_ops structure

[linux-2.6-block.git] / mm / cleancache.c

diff --git a/mm/cleancache.c b/mm/cleancache.c
index 8fc50811119b28b54f15ac875ddc956217acc570..ba5d8f3e6d68a3769589c372adc3183b4addfb40 100644 (file)
--- 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;