Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/zpool.h b/include/linux/zpool.h
index 7238865..51bf430 100644
--- a/include/linux/zpool.h
+++ b/include/linux/zpool.h
@@ -46,6 +46,8 @@
 
 void zpool_destroy_pool(struct zpool *pool);
 
+bool zpool_malloc_support_movable(struct zpool *pool);
+
 int zpool_malloc(struct zpool *pool, size_t size, gfp_t gfp,
 			unsigned long *handle);
 
@@ -90,6 +92,7 @@
 			struct zpool *zpool);
 	void (*destroy)(void *pool);
 
+	bool malloc_support_movable;
 	int (*malloc)(void *pool, size_t size, gfp_t gfp,
 				unsigned long *handle);
 	void (*free)(void *pool, unsigned long handle);