Wapper functions for drbd_device_post_work to start zeroing out device. Change state when both node finish zeroing.
Signed-off-by: Nick Wang <[email protected]> CC: Philipp Reisner <[email protected]> CC: Lars Ellenberg <[email protected]> CC: [email protected] CC: [email protected] --- drbd/drbd_int.h | 2 ++ drbd/drbd_worker.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 65 insertions(+) diff --git a/drbd/drbd_int.h b/drbd/drbd_int.h index f43f957..dd680a9 100644 --- a/drbd/drbd_int.h +++ b/drbd/drbd_int.h @@ -1670,6 +1670,8 @@ extern bool drbd_rs_c_min_rate_throttle(struct drbd_device *device); extern bool drbd_rs_should_slow_down(struct drbd_device *device, sector_t sector, bool throttle_if_app_is_waiting); extern int zero_out_local_device(struct drbd_device *device); +extern void require_zero_out_local_device(struct drbd_device *device); +extern void receive_zero_out_local_device(struct drbd_device *device); extern int drbd_submit_peer_request(struct drbd_device *, struct drbd_peer_request *, const unsigned, const int); diff --git a/drbd/drbd_worker.c b/drbd/drbd_worker.c index 50564f5..293aa27 100644 --- a/drbd/drbd_worker.c +++ b/drbd/drbd_worker.c @@ -1674,6 +1674,69 @@ int zero_out_local_device(struct drbd_device *device) device->ldev->known_size, GFP_NOIO, false); } +/** + * require_zero_out_local_device() + * @device: DRBD device. + * + * Description: + * Start to zero out local device. Update + * status if peer node (secondary) finished + * zeroing. + * +**/ +void require_zero_out_local_device(struct drbd_device *device) +{ + int zero_out_err = 0; + + zero_out_err = zero_out_local_device(device); + + if (zero_out_err) { + drbd_err(device, "Failed to zero out local device\n"); + set_bit(ZERO_FAIL, &device->flags); + drbd_chk_io_error(device, 1, DRBD_WRITE_ERROR); + } else { + drbd_info(device, "Finished zero out local device.\n"); + + if (test_and_clear_bit(ZERO_DONE, &device->flags)) { + spin_lock_irq(&device->resource->req_lock); + _drbd_set_state(_NS2(device, disk, D_UP_TO_DATE, + pdsk, D_UP_TO_DATE), CS_VERBOSE, NULL); + spin_unlock_irq(&device->resource->req_lock); + drbd_send_zero_out_finish(first_peer_device(device)); + } else if (test_and_clear_bit(ZERO_FAIL, &device->flags)) { + drbd_info(device, "Peer device has already failed on zero out\n"); + } else { + /* waiting for peer device finished */ + set_bit(ZERO_DONE, &device->flags); + } + } +} + +/** + * receive_zero_out_local_device() + * @device: DRBD device. + * + * Description: + * Start to zero out local device. + * Notify peer node the zeroing result. + * +**/ +void receive_zero_out_local_device(struct drbd_device *device) +{ + int zero_out_err = 0; + struct drbd_peer_device *const peer_device = first_peer_device(device); + + zero_out_err = zero_out_local_device(device); + if (zero_out_err) { + drbd_err(device, "Failed to zero out local device\n"); + drbd_send_zero_out_fail(peer_device); + drbd_chk_io_error(device, 1, DRBD_WRITE_ERROR); + } else { + drbd_info(device, "Finished zero out local device.\n"); + drbd_send_zero_out_ok(peer_device); + } +} + void start_resync_timer_fn(unsigned long data) { struct drbd_device *device = (struct drbd_device *) data; -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
