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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2010-12-17 21:06:18 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-10 11:43:34 +0100 |
| commit | f735e3635430c6d1c319664d82b34376e3f9aa17 (patch) | |
| tree | c470f5ccd8536ad49778f842762042b75be2677e /drivers/block/drbd/drbd_receiver.c | |
| parent | c88d65e2231dbae4b7cd0ad7b2a919857a1be171 (diff) | |
| download | kernel_samsung_tuna-f735e3635430c6d1c319664d82b34376e3f9aa17.zip kernel_samsung_tuna-f735e3635430c6d1c319664d82b34376e3f9aa17.tar.gz kernel_samsung_tuna-f735e3635430c6d1c319664d82b34376e3f9aa17.tar.bz2 | |
drbd: add debugging assert to make sure the protocol is clean
We expect to only receive the recently introduced "set out of sync"
packets in specific states. If we receive them in different states, that
may confuse the resync process to the point where it won't terminate, or
think it made negative progress.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_receiver.c')
| -rw-r--r-- | drivers/block/drbd/drbd_receiver.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index be7fc67..f0a0f66 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3599,6 +3599,16 @@ static int receive_out_of_sync(struct drbd_conf *mdev, enum drbd_packets cmd, un { struct p_block_desc *p = &mdev->data.rbuf.block_desc; + switch (mdev->state.conn) { + case C_WF_SYNC_UUID: + case C_WF_BITMAP_T: + case C_BEHIND: + break; + default: + dev_err(DEV, "ASSERT FAILED cstate = %s, expected: WFSyncUUID|WFBitMapT|Behind\n", + drbd_conn_str(mdev->state.conn)); + } + drbd_set_out_of_sync(mdev, be64_to_cpu(p->sector), be32_to_cpu(p->blksize)); return true; |