mm: shrinker: make shrinker not depend on memcg kmem

[platform/kernel/linux-starfive.git] / include / linux / shrinker.h

diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 9443caf..0f80123 100644 (file)
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -69,7 +69,7 @@ struct shrinker {
 
        /* These are for internal use */
        struct list_head list;
-#ifdef CONFIG_MEMCG_KMEM
+#ifdef CONFIG_MEMCG
        /* ID in shrinker_idr */
        int id;
 #endif
@@ -81,6 +81,11 @@ struct shrinker {
 /* Flags */
 #define SHRINKER_NUMA_AWARE    (1 << 0)
 #define SHRINKER_MEMCG_AWARE   (1 << 1)
+/*
+ * It just makes sense when the shrinker is also MEMCG_AWARE for now,
+ * non-MEMCG_AWARE shrinker should not have this flag set.
+ */
+#define SHRINKER_NONSLAB       (1 << 2)
 
 extern int prealloc_shrinker(struct shrinker *shrinker);
 extern void register_shrinker_prepared(struct shrinker *shrinker);