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| author | Lars Ellenberg | 2012-07-26 14:09:49 +0200 |
|---|---|---|
| committer | Philipp Reisner | 2012-11-09 14:05:32 +0100 |
| commit | 58ffa580a748dd16b1e5ab260bea39cdbd1e94ef (patch) | |
| tree | 4155bcde6d49f50545bcb1312b6470c64e823d72 /drivers/block/drbd/drbd_state.c | |
| parent | drbd: flush drbd work queue before invalidate/invalidate remote (diff) | |
| download | kernel-qcow2-linux-58ffa580a748dd16b1e5ab260bea39cdbd1e94ef.tar.gz kernel-qcow2-linux-58ffa580a748dd16b1e5ab260bea39cdbd1e94ef.tar.xz kernel-qcow2-linux-58ffa580a748dd16b1e5ab260bea39cdbd1e94ef.zip | |
drbd: introduce stop-sector to online verify
We now can schedule only a specific range of sectors for online verify,
or interrupt a running verify without interrupting the connection.
Had to bump the protocol version differently, we are now 101.
Added verify_can_do_stop_sector() { protocol >= 97 && protocol != 100; }
Also, the return value convention for worker callbacks has changed,
we returned "true/false" for "keep the connection up" in 8.3,
we return 0 for success and <= for failure in 8.4.
Affected: receive_state()
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_state.c')
| -rw-r--r-- | drivers/block/drbd/drbd_state.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c index 444581828d70..12f2b4fbe559 100644 --- a/drivers/block/drbd/drbd_state.c +++ b/drivers/block/drbd/drbd_state.c @@ -975,13 +975,15 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns, wake_up(&mdev->state_wait); wake_up(&mdev->tconn->ping_wait); - /* aborted verify run. log the last position */ + /* Aborted verify run, or we reached the stop sector. + * Log the last position, unless end-of-device. */ if ((os.conn == C_VERIFY_S || os.conn == C_VERIFY_T) && - ns.conn < C_CONNECTED) { + ns.conn <= C_CONNECTED) { mdev->ov_start_sector = BM_BIT_TO_SECT(drbd_bm_bits(mdev) - mdev->ov_left); - dev_info(DEV, "Online Verify reached sector %llu\n", - (unsigned long long)mdev->ov_start_sector); + if (mdev->ov_left) + dev_info(DEV, "Online Verify reached sector %llu\n", + (unsigned long long)mdev->ov_start_sector); } if ((os.conn == C_PAUSED_SYNC_T || os.conn == C_PAUSED_SYNC_S) && @@ -1422,6 +1424,13 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, if (os.disk < D_UP_TO_DATE && os.conn >= C_SYNC_SOURCE && ns.conn == C_CONNECTED) drbd_send_state(mdev, ns); + /* Verify finished, or reached stop sector. Peer did not know about + * the stop sector, and we may even have changed the stop sector during + * verify to interrupt/stop early. Send the new state. */ + if (os.conn == C_VERIFY_S && ns.conn == C_CONNECTED + && verify_can_do_stop_sector(mdev)) + drbd_send_state(mdev, ns); + /* Wake up role changes, that were delayed because of connection establishing */ if (os.conn == C_WF_REPORT_PARAMS && ns.conn != C_WF_REPORT_PARAMS) { if (test_and_clear_bit(STATE_SENT, &mdev->tconn->flags)) |