diff options
| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2012-08-17 17:09:13 +0400 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2012-11-09 17:08:19 +0400 |
| commit | 08332d73250eec349b055843a503d45a9b5c13b6 (patch) | |
| tree | ec23064ccd2e5f0e21ee883793d0682c5e9a784a /drivers/block | |
| parent | 155522df5b8ac24ee66a903e51d5b3023b2a76f9 (diff) | |
| download | linux-08332d73250eec349b055843a503d45a9b5c13b6.tar.xz | |
drbd: properly call drbd_rs_cancel_all() in drbd_disconnected()
drbd_disconnected() is supposed to clear the resync lru cache,
by calling drbd_rs_cancel_all().
We must do so before we call drbd_flush_workqueue(), as at least the
callback w_restart_disk_io() may wait for resync progres, and would
otherwise deadlock.
drbd_finish_peer_reqs() may again populate that cache, which will
then potentially be stale after the next resync handshake and bitmap
exchange, we have to do it again after that.
A stale resync lru cache causes no harm but ugly messages like this:
BAD! sector=196608s enr=6 rs_left=-256 rs_failed=0 count=256 cstate=SyncTarget
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/drbd/drbd_receiver.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 4ba530cf810f..d5afa0a81fd0 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -4526,6 +4526,10 @@ static int drbd_disconnected(struct drbd_conf *mdev) necessary to reclain net_ee in drbd_finish_peer_reqs(). */ drbd_flush_workqueue(mdev); + /* need to do it again, drbd_finish_peer_reqs() may have populated it + * again via drbd_try_clear_on_disk_bm(). */ + drbd_rs_cancel_all(mdev); + kfree(mdev->p_uuid); mdev->p_uuid = NULL; |