diff options
Diffstat (limited to 'include/linux/device-mapper.h')
| -rw-r--r-- | include/linux/device-mapper.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 2970022..32a4423 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -193,6 +193,12 @@ struct dm_target { char *error; }; +/* Each target can link one of these into the table */ +struct dm_target_callbacks { + struct list_head list; + int (*congested_fn) (struct dm_target_callbacks *, int); +}; + int dm_register_target(struct target_type *t); void dm_unregister_target(struct target_type *t); @@ -269,14 +275,14 @@ int dm_table_add_target(struct dm_table *t, const char *type, sector_t start, sector_t len, char *params); /* - * Finally call this to make the table ready for use. + * Target_ctr should call this if it needs to add any callbacks. */ -int dm_table_complete(struct dm_table *t); +void dm_table_add_target_callbacks(struct dm_table *t, struct dm_target_callbacks *cb); /* - * Unplug all devices in a table. + * Finally call this to make the table ready for use. */ -void dm_table_unplug_all(struct dm_table *t); +int dm_table_complete(struct dm_table *t); /* * Table reference counting. |