drbd: factor out drbd_rs_controller_reset

Preparation patch to be able to use the auto-throttling resync controller
for online-verify requests as well.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 7131bf2..85207b2 100644 (file)
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1499,6 +1499,7 @@ extern int drbd_resync_finished(struct drbd_conf *mdev);
 extern int drbd_md_sync_page_io(struct drbd_conf *mdev,
                struct drbd_backing_dev *bdev, sector_t sector, int rw);
 extern void drbd_ov_oos_found(struct drbd_conf*, sector_t, int);
+extern void drbd_rs_controller_reset(struct drbd_conf *mdev);
 
 static inline void ov_oos_print(struct drbd_conf *mdev)
 {

diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index a050eb0..971e9b3 100644 (file)
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1439,6 +1439,17 @@ int drbd_alter_sa(struct drbd_conf *mdev, int na)
        return retcode;
 }
 
+void drbd_rs_controller_reset(struct drbd_conf *mdev)
+{
+       atomic_set(&mdev->rs_sect_in, 0);
+       atomic_set(&mdev->rs_sect_ev, 0);
+       mdev->rs_in_flight = 0;
+       mdev->rs_planed = 0;
+       spin_lock(&mdev->peer_seq_lock);
+       fifo_set(&mdev->rs_plan_s, 0);
+       spin_unlock(&mdev->peer_seq_lock);
+}
+
 /**
  * drbd_start_resync() - Start the resync process
  * @mdev:      DRBD device.
@@ -1556,13 +1567,7 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
                        drbd_resync_finished(mdev);
                }
 
-               atomic_set(&mdev->rs_sect_in, 0);
-               atomic_set(&mdev->rs_sect_ev, 0);
-               mdev->rs_in_flight = 0;
-               mdev->rs_planed = 0;
-               spin_lock(&mdev->peer_seq_lock);
-               fifo_set(&mdev->rs_plan_s, 0);
-               spin_unlock(&mdev->peer_seq_lock);
+               drbd_rs_controller_reset(mdev);
                /* ns.conn may already be != mdev->state.conn,
                 * we may have been paused in between, or become paused until
                 * the timer triggers.