diff options
Diffstat (limited to 'include/linux/device-mapper.h')
| -rw-r--r-- | include/linux/device-mapper.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index a90222e3297d..08d783592b73 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -13,7 +13,6 @@ struct dm_target; struct dm_table; -struct dm_dev; struct mapped_device; struct bio_vec; @@ -84,6 +83,12 @@ void dm_error(const char *message); */ void dm_set_device_limits(struct dm_target *ti, struct block_device *bdev); +struct dm_dev { + struct block_device *bdev; + int mode; + char name[16]; +}; + /* * Constructors should call these functions to ensure destination devices * are opened/closed correctly. @@ -202,6 +207,7 @@ int dm_copy_name_and_uuid(struct mapped_device *md, char *name, char *uuid); struct gendisk *dm_disk(struct mapped_device *md); int dm_suspended(struct mapped_device *md); int dm_noflush_suspending(struct dm_target *ti); +union map_info *dm_get_mapinfo(struct bio *bio); /* * Geometry functions. @@ -232,6 +238,11 @@ int dm_table_add_target(struct dm_table *t, const char *type, int dm_table_complete(struct dm_table *t); /* + * Unplug all devices in a table. + */ +void dm_table_unplug_all(struct dm_table *t); + +/* * Table reference counting. */ struct dm_table *dm_get_table(struct mapped_device *md); @@ -256,6 +267,11 @@ void dm_table_event(struct dm_table *t); */ int dm_swap_table(struct mapped_device *md, struct dm_table *t); +/* + * A wrapper around vmalloc. + */ +void *dm_vcalloc(unsigned long nmemb, unsigned long elem_size); + /*----------------------------------------------------------------- * Macros. *---------------------------------------------------------------*/ |