diff options
Diffstat (limited to 'drivers/md/dm.h')
| -rw-r--r-- | drivers/md/dm.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h index a48ec5e3c1f..2f796b1436b 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -33,6 +33,25 @@ #define SECTOR_SHIFT 9 /* + * Definitions of return values from target end_io function. + */ +#define DM_ENDIO_INCOMPLETE 1 +#define DM_ENDIO_REQUEUE 2 + +/* + * Definitions of return values from target map function. + */ +#define DM_MAPIO_SUBMITTED 0 +#define DM_MAPIO_REMAPPED 1 +#define DM_MAPIO_REQUEUE DM_ENDIO_REQUEUE + +/* + * Suspend feature flags + */ +#define DM_SUSPEND_LOCKFS_FLAG (1 << 0) +#define DM_SUSPEND_NOFLUSH_FLAG (1 << 1) + +/* * List of devices that a metadevice uses and should open/close. */ struct dm_dev { |