diff options
| author | Alasdair G. Kergon <agk@redhat.com> | 2005-01-25 04:44:38 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-01-25 04:44:38 -0800 |
| commit | 0c4b76ba2f33c507d0578f3bce5fb9a52b8921bf (patch) | |
| tree | baf34a4aca160b4f95747ef85885c452fa152aea /include/linux/device-mapper.h | |
| parent | e839d3885707d054ffb5401d017f56cae4b7d78e (diff) | |
[PATCH] device-mapper: Add presuspend hook
Add optional callback before each device gets suspended (called 'presuspend').
Rename existing callback used by dm-mirror from 'suspend' to 'postsuspend'.
dm-multipath will use the new callback.
(Any kernel module using device-mapper must be recompiled after this patch.)
Signed-Off-By: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/device-mapper.h')
| -rw-r--r-- | include/linux/device-mapper.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index a6282ab22b8c..956da05fd52c 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -52,7 +52,8 @@ typedef int (*dm_endio_fn) (struct dm_target *ti, struct bio *bio, int error, union map_info *map_context); -typedef void (*dm_suspend_fn) (struct dm_target *ti); +typedef void (*dm_presuspend_fn) (struct dm_target *ti); +typedef void (*dm_postsuspend_fn) (struct dm_target *ti); typedef void (*dm_resume_fn) (struct dm_target *ti); typedef int (*dm_status_fn) (struct dm_target *ti, status_type_t status_type, @@ -82,7 +83,8 @@ struct target_type { dm_dtr_fn dtr; dm_map_fn map; dm_endio_fn end_io; - dm_suspend_fn suspend; + dm_presuspend_fn presuspend; + dm_postsuspend_fn postsuspend; dm_resume_fn resume; dm_status_fn status; dm_message_fn message; |