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-rw-r--r--include/linux/shrinker.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 6794490f25b2..7ca9c18cf130 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -66,6 +66,10 @@ struct shrinker {
/* These are for internal use */
struct list_head list;
+#ifdef CONFIG_MEMCG_KMEM
+ /* ID in shrinker_idr */
+ int id;
+#endif
/* objs pending delete, per node */
atomic_long_t *nr_deferred;
};