From: Philipp Reisner Date: Tue, 2 Mar 2010 14:06:45 +0000 (+0100) Subject: drbd: Make sure we do not send state updates during an empty resync [Bugz 271] X-Git-Tag: firefly_0821_release~9833^2~2371^2~23 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d0c3f60f3611ceac9b1e4fdffd1497337568e7cb;p=firefly-linux-kernel-4.4.55.git drbd: Make sure we do not send state updates during an empty resync [Bugz 271] This is a race condition that existed for ages. The previous commit reduces the window, this one closes it. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 4672f2f37b51..44bf6d11197e 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -1380,7 +1380,6 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) _drbd_pause_after(mdev); } write_unlock_irq(&global_state_lock); - drbd_state_unlock(mdev); put_ldev(mdev); if (r == SS_SUCCESS) { @@ -1393,7 +1392,6 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) /* Peer still reachable? Beware of failing before-resync-target handlers! */ ping_peer(mdev); drbd_resync_finished(mdev); - return; } /* ns.conn may already be != mdev->state.conn, @@ -1405,6 +1403,7 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side) drbd_md_sync(mdev); } + drbd_state_unlock(mdev); } int drbd_worker(struct drbd_thread *thi)