mm: move page->mem_cgroup bad page handling into generic code

[firefly-linux-kernel-4.4.55.git] / include / linux / device-mapper.h

diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index e1707de043ae7bad7f6165ee34841f39abd5cc6c..ca6d2acc5eb76f75781fb77dd12eb671642c8d36 100644 (file)
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -64,6 +64,7 @@ typedef int (*dm_request_endio_fn) (struct dm_target *ti,
                                    union map_info *map_context);
 
 typedef void (*dm_presuspend_fn) (struct dm_target *ti);
+typedef void (*dm_presuspend_undo_fn) (struct dm_target *ti);
 typedef void (*dm_postsuspend_fn) (struct dm_target *ti);
 typedef int (*dm_preresume_fn) (struct dm_target *ti);
 typedef void (*dm_resume_fn) (struct dm_target *ti);
@@ -145,6 +146,7 @@ struct target_type {
        dm_endio_fn end_io;
        dm_request_endio_fn rq_end_io;
        dm_presuspend_fn presuspend;
+       dm_presuspend_undo_fn presuspend_undo;
        dm_postsuspend_fn postsuspend;
        dm_preresume_fn preresume;
        dm_resume_fn resume;