tree a45461e71c8aaab46b8322fbaeb55e6d8710d057
parent 2bd5ed5d6713594eb2b4d234d01217d506279c7d
author Lars Ellenberg <lars.ellenberg@linbit.com> 1364389721 +0100
committer Jens Axboe <axboe@kernel.dk> 1364487025 -0600

drbd: only fail empty flushes if no good data is reachable

We completed empty flushes (blkdev_issue_flush()) with IO error
if we lost the local disk, even if we still have an established
replication link to a healthy remote disk.

Fix this to only report errors to upper layers,
if neither local nor remote data is reachable.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>