@@ -102,6 +102,8 @@ extern void register_shrinker_prepared(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 unregister_shrinker_delayed_initiate(struct shrinker *shrinker);
+extern void unregister_shrinker_delayed_finalize(struct shrinker *shrinker);
extern void free_prealloced_shrinker(struct shrinker *shrinker);
extern void synchronize_shrinkers(void);
@@ -799,10 +799,7 @@ int register_shrinker(struct shrinker *shrinker, const char *fmt, ...)
#endif
EXPORT_SYMBOL(register_shrinker);
-/*
- * Remove one
- */
-void unregister_shrinker(struct shrinker *shrinker)
+void unregister_shrinker_delayed_initiate(struct shrinker *shrinker)
{
struct dentry *debugfs_entry;
int debugfs_id;
@@ -819,6 +816,13 @@ void unregister_shrinker(struct shrinker *shrinker)
mutex_unlock(&shrinker_mutex);
shrinker_debugfs_remove(debugfs_entry, debugfs_id);
+}
+EXPORT_SYMBOL(unregister_shrinker_delayed_initiate);
+
+void unregister_shrinker_delayed_finalize(struct shrinker *shrinker)
+{
+ if (!shrinker->nr_deferred)
+ return;
atomic_inc(&shrinker_srcu_generation);
synchronize_srcu(&shrinker_srcu);
@@ -826,6 +830,16 @@ void unregister_shrinker(struct shrinker *shrinker)
kfree(shrinker->nr_deferred);
shrinker->nr_deferred = NULL;
}
+EXPORT_SYMBOL(unregister_shrinker_delayed_finalize);
+
+/*
+ * Remove one
+ */
+void unregister_shrinker(struct shrinker *shrinker)
+{
+ unregister_shrinker_delayed_initiate(shrinker);
+ unregister_shrinker_delayed_finalize(shrinker);
+}
EXPORT_SYMBOL(unregister_shrinker);
/**