mm: bdi init hooks
provide BDI constructor/destructor hooks
[akpm@linux-foundation.org: compile fix]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 210933c..8f56634 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -34,6 +34,14 @@
void *unplug_io_data;
};
+static inline int bdi_init(struct backing_dev_info *bdi)
+{
+ return 0;
+}
+
+static inline void bdi_destroy(struct backing_dev_info *bdi)
+{
+}
/*
* Flags in backing_dev_info::capability