diff options
Diffstat (limited to 'drivers/block/drbd/drbd_nl.c')
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index f923462..838c3cd 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1062,10 +1062,13 @@ void drbd_reconsider_max_bio_size(struct drbd_conf *mdev) BIOs for a single peer_request */ if (mdev->state.conn >= C_CONNECTED) { if (mdev->tconn->agreed_pro_version < 94) - peer = mdev->peer_max_bio_size; + peer = min_t(int, mdev->peer_max_bio_size, DRBD_MAX_SIZE_H80_PACKET); + /* Correct old drbd (up to 8.3.7) if it believes it can do more than 32KiB */ else if (mdev->tconn->agreed_pro_version == 94) peer = DRBD_MAX_SIZE_H80_PACKET; - else /* drbd 8.3.8 onwards */ + else if (mdev->tconn->agreed_pro_version < 100) + peer = DRBD_MAX_BIO_SIZE_P95; /* drbd 8.3.8 onwards, before 8.4.0 */ + else peer = DRBD_MAX_BIO_SIZE; } |