zswap: Uncross module parameter setting functions

The "compressor" and "zpool" parameters of the zswap module each has
a custom setter function that calls __zswap_param_set with specific
parameters, but the "zpool" setter uses parameters that are correct for
the "compressor" parameter, and vice-versa.

Fix this by swapping the function bodies over.

Fixes: 90b0fc2 ("zswap: change zpool/compressor at runtime")

Signed-off-by: Phil Elwell <[email protected]>

Author: pelwell

mm/zswap.c

@@ -792,13 +792,13 @@ static int __zswap_param_set(const char *val, const struct kernel_param *kp,
 static int zswap_compressor_param_set(const char *val,
 				      const struct kernel_param *kp)
 {
-	return __zswap_param_set(val, kp, zswap_zpool_type, NULL);
+	return __zswap_param_set(val, kp, NULL, zswap_compressor);
 }
 
 static int zswap_zpool_param_set(const char *val,
 				 const struct kernel_param *kp)
 {
-	return __zswap_param_set(val, kp, NULL, zswap_compressor);
+	return __zswap_param_set(val, kp, zswap_zpool_type, NULL);
 }
 
 static int zswap_enabled_param_set(const char *val,