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| author | Dmitry Torokhov <dtor@insightbb.com> | 2007-02-10 01:26:32 -0500 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2007-02-10 01:26:32 -0500 |
| commit | b22364c8eec89e6b0c081a237f3b6348df87796f (patch) | |
| tree | 233a923281fb640106465d076997ff511efb6edf /include/linux/device-mapper.h | |
| parent | 2c8dc071517ec2843869024dc82be2e246f41064 (diff) | |
| parent | 66efc5a7e3061c3597ac43a8bb1026488d57e66b (diff) | |
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/linux/device-mapper.h')
| -rw-r--r-- | include/linux/device-mapper.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 03ef41c1eaa..499f5373e21 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -39,7 +39,8 @@ typedef void (*dm_dtr_fn) (struct dm_target *ti); * The map function must return: * < 0: error * = 0: The target will handle the io by resubmitting it later - * > 0: simple remap complete + * = 1: simple remap complete + * = 2: The target wants to push back the io */ typedef int (*dm_map_fn) (struct dm_target *ti, struct bio *bio, union map_info *map_context); @@ -50,6 +51,7 @@ typedef int (*dm_map_fn) (struct dm_target *ti, struct bio *bio, * 0 : ended successfully * 1 : for some reason the io has still not completed (eg, * multipath target might want to requeue a failed io). + * 2 : The target wants to push back the io */ typedef int (*dm_endio_fn) (struct dm_target *ti, struct bio *bio, int error, @@ -173,7 +175,7 @@ void *dm_get_mdptr(struct mapped_device *md); /* * A device can still be used while suspended, but I/O is deferred. */ -int dm_suspend(struct mapped_device *md, int with_lockfs); +int dm_suspend(struct mapped_device *md, unsigned suspend_flags); int dm_resume(struct mapped_device *md); /* @@ -188,6 +190,7 @@ int dm_wait_event(struct mapped_device *md, int event_nr); const char *dm_device_name(struct mapped_device *md); struct gendisk *dm_disk(struct mapped_device *md); int dm_suspended(struct mapped_device *md); +int dm_noflush_suspending(struct dm_target *ti); /* * Geometry functions. |