From d67ee213fa5700c7da526fe5bcccd485cfa63d8b Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 28 Oct 2014 20:13:31 -0400 Subject: dm: add presuspend_undo hook to target_type The DM thin-pool target now must undo the changes performed during pool_presuspend() so introduce presuspend_undo hook in target_type. Signed-off-by: Mike Snitzer Acked-by: Joe Thornber --- include/linux/device-mapper.h | 2 ++ include/uapi/linux/dm-ioctl.h | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index e1707de043ae..ca6d2acc5eb7 100644 --- 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; diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h index 3315ab21f728..2be66f4be2f9 100644 --- a/include/uapi/linux/dm-ioctl.h +++ b/include/uapi/linux/dm-ioctl.h @@ -267,9 +267,9 @@ enum { #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) #define DM_VERSION_MAJOR 4 -#define DM_VERSION_MINOR 28 +#define DM_VERSION_MINOR 29 #define DM_VERSION_PATCHLEVEL 0 -#define DM_VERSION_EXTRA "-ioctl (2014-09-17)" +#define DM_VERSION_EXTRA "-ioctl (2014-10-28)" /* Status bits */ #define DM_READONLY_FLAG (1 << 0) /* In/Out */ -- cgit v1.2.3-71-gd317