Merge tag 'for-linus-6.1-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-block.git] / mm / shuffle.c
index c13c33b247e8747c4bed412edc8776ef53e8973c..fb1393b8b3a9d61e7bee560bd434e7de3b46b635 100644 (file)
 DEFINE_STATIC_KEY_FALSE(page_alloc_shuffle_key);
 
 static bool shuffle_param;
-static int shuffle_show(char *buffer, const struct kernel_param *kp)
-{
-       return sprintf(buffer, "%c\n", shuffle_param ? 'Y' : 'N');
-}
 
-static __meminit int shuffle_store(const char *val,
+static __meminit int shuffle_param_set(const char *val,
                const struct kernel_param *kp)
 {
-       int rc = param_set_bool(val, kp);
-
-       if (rc < 0)
-               return rc;
-       if (shuffle_param)
+       if (param_set_bool(val, kp))
+               return -EINVAL;
+       if (*(bool *)kp->arg)
                static_branch_enable(&page_alloc_shuffle_key);
        return 0;
 }
-module_param_call(shuffle, shuffle_store, shuffle_show, &shuffle_param, 0400);
+
+static const struct kernel_param_ops shuffle_param_ops = {
+       .set = shuffle_param_set,
+       .get = param_get_bool,
+};
+module_param_cb(shuffle, &shuffle_param_ops, &shuffle_param, 0400);
 
 /*
  * For two pages to be swapped in the shuffle, they must be free (on a