diff options
Diffstat (limited to 'drivers/md/dm.h')
| -rw-r--r-- | drivers/md/dm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h index 4b3faa45277e..177297a88ebd 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -112,6 +112,11 @@ int dm_table_resume_targets(struct dm_table *t); int dm_table_any_congested(struct dm_table *t, int bdi_bits); void dm_table_unplug_all(struct dm_table *t); +/* + * To check the return value from dm_table_find_target(). + */ +#define dm_target_is_valid(t) ((t)->table) + /*----------------------------------------------------------------- * A registry of target types. *---------------------------------------------------------------*/ |