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authorLars Ellenberg <lars.ellenberg@linbit.com>2011-01-12 11:51:13 +0100
committerPhilipp Reisner <philipp.reisner@linbit.com>2011-03-10 11:47:52 +0100
commit6c922ed543bee1bc6685ade07be59f3fa49a7288 (patch)
tree1a2b0c13be822da96a6335953cca9cd06d1b7e1b /drivers/block/drbd
parent20ee639024e3d33111df0e343050b218c656bf16 (diff)
drbd: only generate and send a new sync uuid after a successful state change
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd')
-rw-r--r--drivers/block/drbd/drbd_worker.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 7b3d4dc4af84..ec42e04bb517 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1544,24 +1544,23 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
}
write_unlock_irq(&global_state_lock);
- if (side == C_SYNC_TARGET)
- mdev->bm_resync_fo = 0;
-
- /* Since protocol 96, we must serialize drbd_gen_and_send_sync_uuid
- * with w_send_oos, or the sync target will get confused as to
- * how much bits to resync. We cannot do that always, because for an
- * empty resync and protocol < 95, we need to do it here, as we call
- * drbd_resync_finished from here in that case.
- * We drbd_gen_and_send_sync_uuid here for protocol < 96,
- * and from after_state_ch otherwise. */
- if (side == C_SYNC_SOURCE && mdev->agreed_pro_version < 96)
- drbd_gen_and_send_sync_uuid(mdev);
-
if (r == SS_SUCCESS) {
dev_info(DEV, "Began resync as %s (will sync %lu KB [%lu bits set]).\n",
drbd_conn_str(ns.conn),
(unsigned long) mdev->rs_total << (BM_BLOCK_SHIFT-10),
(unsigned long) mdev->rs_total);
+ if (side == C_SYNC_TARGET)
+ mdev->bm_resync_fo = 0;
+
+ /* Since protocol 96, we must serialize drbd_gen_and_send_sync_uuid
+ * with w_send_oos, or the sync target will get confused as to
+ * how much bits to resync. We cannot do that always, because for an
+ * empty resync and protocol < 95, we need to do it here, as we call
+ * drbd_resync_finished from here in that case.
+ * We drbd_gen_and_send_sync_uuid here for protocol < 96,
+ * and from after_state_ch otherwise. */
+ if (side == C_SYNC_SOURCE && mdev->agreed_pro_version < 96)
+ drbd_gen_and_send_sync_uuid(mdev);
if (mdev->agreed_pro_version < 95 && mdev->rs_total == 0) {
/* This still has a race (about when exactly the peers