Merge tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / include / linux / shrinker.h

diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 76fbf92..08e6054 100644 (file)
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -72,6 +72,11 @@ struct shrinker {
 #ifdef CONFIG_MEMCG
        /* ID in shrinker_idr */
        int id;
+#endif
+#ifdef CONFIG_SHRINKER_DEBUG
+       int debugfs_id;
+       const char *name;
+       struct dentry *debugfs_entry;
 #endif
        /* objs pending delete, per node */
        atomic_long_t *nr_deferred;
@@ -88,10 +93,32 @@ struct shrinker {
  */
 #define SHRINKER_NONSLAB       (1 << 3)
 
-extern int prealloc_shrinker(struct shrinker *shrinker);
+extern int __printf(2, 3) prealloc_shrinker(struct shrinker *shrinker,
+                                           const char *fmt, ...);
 extern void register_shrinker_prepared(struct shrinker *shrinker);
-extern int register_shrinker(struct shrinker *shrinker);
+extern int __printf(2, 3) register_shrinker(struct shrinker *shrinker,
+                                           const char *fmt, ...);
 extern void unregister_shrinker(struct shrinker *shrinker);
 extern void free_prealloced_shrinker(struct shrinker *shrinker);
 extern void synchronize_shrinkers(void);
-#endif
+
+#ifdef CONFIG_SHRINKER_DEBUG
+extern int shrinker_debugfs_add(struct shrinker *shrinker);
+extern void shrinker_debugfs_remove(struct shrinker *shrinker);
+extern int __printf(2, 3) shrinker_debugfs_rename(struct shrinker *shrinker,
+                                                 const char *fmt, ...);
+#else /* CONFIG_SHRINKER_DEBUG */
+static inline int shrinker_debugfs_add(struct shrinker *shrinker)
+{
+       return 0;
+}
+static inline void shrinker_debugfs_remove(struct shrinker *shrinker)
+{
+}
+static inline __printf(2, 3)
+int shrinker_debugfs_rename(struct shrinker *shrinker, const char *fmt, ...)
+{
+       return 0;
+}
+#endif /* CONFIG_SHRINKER_DEBUG */
+#endif /* _LINUX_SHRINKER_H */