diff options
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index ab718582a092..000a2f4c0e92 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -430,7 +430,11 @@ enum { __EE_MAY_SET_IN_SYNC, /* is this a TRIM aka REQ_OP_DISCARD? */ - __EE_IS_TRIM, + __EE_TRIM, + /* explicit zero-out requested, or + * our lower level cannot handle trim, + * and we want to fall back to zeroout instead */ + __EE_ZEROOUT, /* In case a barrier failed, * we need to resubmit without the barrier flag. */ @@ -472,7 +476,8 @@ enum { }; #define EE_CALL_AL_COMPLETE_IO (1<<__EE_CALL_AL_COMPLETE_IO) #define EE_MAY_SET_IN_SYNC (1<<__EE_MAY_SET_IN_SYNC) -#define EE_IS_TRIM (1<<__EE_IS_TRIM) +#define EE_TRIM (1<<__EE_TRIM) +#define EE_ZEROOUT (1<<__EE_ZEROOUT) #define EE_RESUBMITTED (1<<__EE_RESUBMITTED) #define EE_WAS_ERROR (1<<__EE_WAS_ERROR) #define EE_HAS_DIGEST (1<<__EE_HAS_DIGEST) @@ -1556,6 +1561,8 @@ extern void start_resync_timer_fn(struct timer_list *t); extern void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req); /* drbd_receiver.c */ +extern int drbd_issue_discard_or_zero_out(struct drbd_device *device, + sector_t start, unsigned int nr_sectors, int flags); extern int drbd_receiver(struct drbd_thread *thi); extern int drbd_ack_receiver(struct drbd_thread *thi); extern void drbd_send_ping_wf(struct work_struct *ws); |