[PATCH 01/29] mm: shrinker: add shrinker::private_data field

Qi Zheng
2023-06-22T08:26:24Z

To prepare for the dynamic allocation of shrinker instances
embedded in other structures, add a private_data field to
struct shrinker, so that we can use shrinker::private_data
to record and get the original embedded structure.

Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
---
include/linux/shrinker.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 224293b2dd06..43e6fcabbf51 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -70,6 +70,8 @@ struct shrinker {
int seeks; /* seeks to recreate an obj */
unsigned flags;

+ void *private_data;
+
/* These are for internal use */
struct list_head list;
#ifdef CONFIG_MEMCG
--
2.30.2