From 26525618863afcc4aab8b2a83451d37c6f513460 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Fri, 5 Nov 2010 09:56:33 +0100 Subject: [PATCH] drbd: only reset online-verify start sector if verify completed For network hickups during online-verify, on the next verify triggered, we by default want to resume where it left off. After any replication link interruption, there will be a (possibly empty) resync. Do not reset online-verify start sector if some resync completed, that would defeats the purpose. Only reset the start sector once a verify run is completed. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_worker.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index e027446..6cfc5417 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -782,6 +782,7 @@ int drbd_resync_finished(struct drbd_conf *mdev) union drbd_state os, ns; struct drbd_work *w; char *khelper_cmd = NULL; + int verify_done = 0; /* Remove all elements from the resync LRU. Since future actions * might set bits in the (main) bitmap, then the entries in the @@ -818,6 +819,8 @@ int drbd_resync_finished(struct drbd_conf *mdev) spin_lock_irq(&mdev->req_lock); os = mdev->state; + verify_done = (os.conn == C_VERIFY_S || os.conn == C_VERIFY_T); + /* This protects us against multiple calls (that can happen in the presence of application IO), and against connectivity loss just before we arrive here. */ if (os.conn <= C_CONNECTED) @@ -827,8 +830,7 @@ int drbd_resync_finished(struct drbd_conf *mdev) ns.conn = C_CONNECTED; dev_info(DEV, "%s done (total %lu sec; paused %lu sec; %lu K/sec)\n", - (os.conn == C_VERIFY_S || os.conn == C_VERIFY_T) ? - "Online verify " : "Resync", + verify_done ? "Online verify " : "Resync", dt + mdev->rs_paused, mdev->rs_paused, dbdt); n_oos = drbd_bm_total_weight(mdev); @@ -905,7 +907,8 @@ out: mdev->rs_total = 0; mdev->rs_failed = 0; mdev->rs_paused = 0; - mdev->ov_start_sector = 0; + if (verify_done) + mdev->ov_start_sector = 0; drbd_md_sync(mdev); -- 2.7.4