diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 2364b781d9ac..a187c5b0da27 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1194,8 +1194,14 @@ void drbd_reconsider_max_bio_size(struct drbd_device *device) peer = DRBD_MAX_BIO_SIZE_P95; /* drbd 8.3.8 onwards, before 8.4.0 */ else peer = DRBD_MAX_BIO_SIZE; - } + /* We may later detach and re-attach on a disconnected Primary. + * Avoid this setting to jump back in that case. + * We want to store what we know the peer DRBD can handle, + * not what the peer IO backend can handle. */ + if (peer > device->peer_max_bio_size) + device->peer_max_bio_size = peer; + } new = min(local, peer); if (device->state.role == R_PRIMARY && new < now) |