- 08 Nov, 2012 40 commits
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Philipp Reisner authored
New config option for the disk secition "read-balancing", with the values: prefer-local, prefer-remote, round-robin, when-congested-remote. Signed-off-by:
Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by:
Lars Ellenberg <lars.ellenberg@linbit.com>
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Philipp Reisner authored
Signed-off-by:
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Lars Ellenberg authored
Recent commit drbd: Move write_ordering from mdev to tconn introduced a new idr_for_each loop over all volumes, but did not take necessary rcu locks or krefs. Signed-off-by:
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Andreas Gruenbacher authored
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Philipp Reisner authored
drbd_try_clear_on_disk_bm() has a sanity check for the number of blocks left to be resynced (rs_left) in the current resync extent. If it detects a mismatch, it complains, and forces a disconnect using drbd_force_state(mdev, NS(conn, C_DISCONNECTING)); Unfortunately, this may be called while holding the req_lock, and drbd_force_state() want's to aquire that lock itself. Deadlock. Don't force a disconnect, but fix up rs_left by recounting and reassigning the number of dirty blocks in that extent. Signed-off-by:
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Philipp Reisner authored
Wait until IO is drained in all volumes. Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
This is necessary since the transfer_log on the sending is also per tconn. Signed-off-by:
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Philipp Reisner authored
An epoch object needs a pointer to the mdev it was received for. This is necessary to be able to send the barrier ack packet for the same volume as the original barrier packet was assigned to. This prepares the next step, in which the (receiver side) epoch list is moved from the device (mdev) to the connection (tconn) object. Signed-off-by:
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Philipp Reisner authored
This is necessary in order to prepare the move of the (receiver side) epoch list from the device (mdev) to the connection (tconn) objects. Signed-off-by:
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Philipp Reisner authored
That is necessary since the whole transfer log is per connection(tconn) and not per device(mdev). This bug caused list corruption on the worker list. When a barrier is queued for sending in the context of one device, another device did not see the CREATE_BARRIER bit, and queued the same object again -> list corruption. Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
* drbd-8.3: drbd: O_SYNC gives EIO on ramdisks for some kernels (eg. RHEL6). drbd: send intermediate state change results to the peer Signed-off-by:
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Philipp Reisner authored
* drbd-8.3: drbd: fix spurious meta data IO "error" drbd: Fixed a race condition between detach and start of resync drbd: fix harmless race to not trigger an ASSERT drbd: Derive sync-UUIDs only from the bitmap-uuid if it is non-zero drbd: Fixed current UUID generation (regression introduced recently, after 8.3.11) Signed-off-by:
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Philipp Reisner authored
Since version 4.6.1 gcc warns about variables that get a value assigned, but which are never read later on. Signed-off-by:
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Philipp Reisner authored
With sync-after dependencies, given "lucky" timing of pause/unpause events, and the end of an empty (0 bits set) resync was sometimes not detected on the SyncTarget, leading to a "stalled" SyncSource state. Fixed this by expecting not only "Inconsistent -> UpToDate" but also "Consistent -> UpToDate" transitions for the peer disk state to end a resync. Signed-off-by:
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Lars Ellenberg authored
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Philipp Reisner authored
...not only for the first volume Signed-off-by:
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Andreas Gruenbacher authored
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Lars Ellenberg authored
If no net-options are configured (all on their default), no DRBD_NLA_NET_CONF will be passed to the kernel. The kernel must not require its presence, there is no required option in there. Signed-off-by:
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Andreas Gruenbacher authored
Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
* The max of minor_count is 255 * In drbdadm count the number of minors, instead of finding the highest minor number * No longer us the magic in the init script Signed-off-by:
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Philipp Reisner authored
This was a regression recently introduced with commit 7848ddb752c09b6dfd1ddfabb06b69b08aa8f6b9 "drbd: Correctly handle resources without volumes" Signed-off-by:
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Lars Ellenberg authored
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Andreas Gruenbacher authored
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Philipp Reisner authored
If we get into the C_BROKEN_PIPE cstate once, the state engine set the thi->t_state of the receiver thread to restarting. But with the while loop in drbdd_init() a new connection gets established. After the call into drbdd() returns immediately since the thi->t_state is not RUNNING. The restart of drbd_init() then resets thi->t_state to RUNNING. I.e. after entering C_BROKEN_PIPE once, the next successful established connection gets wasted. The two parts of the fix: * Do not cause the thread to restart if we detect the issue with the sockets while we are in C_WF_CONNECTION. * Make sure that all actions that would have set us to C_BROKEN_PIPE happen before the state change to C_WF_REPORT_PARAMS. Signed-off-by: -
Andreas Gruenbacher authored
The last data-integrity-alg fix made data integrity checking work when the algorithm was changed for an established connection, but the common case of configuring the algorithm before connecting was still broken. Fix that. Signed-off-by:
Andreas Gruenbacher <agruen@linbit.com> Signed-off-by:
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Andreas Gruenbacher authored
There is no need to overly generalize this function; it only makes the code harder to understand. Signed-off-by:
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Philipp Reisner authored
Since we now apply the AL in user space onto the bitmap, the AL is not active for the requests we want to reply. For that a al_write_transaction() that might be called from worker context became necessary. Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
In case we can not find out why the request takes too long (happens e.g. when IO got suspended on DRBD level). rearm the timer with a reasonable value. Signed-off-by:
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Philipp Reisner authored
...when the peer has inconsistent data. In that case we failed to clear the susp_nod flag. When the local disk was attached again Signed-off-by:
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Philipp Reisner authored
Looks like a remainder from long ago. Signed-off-by:
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
Refer to the settings by the names which drbdsetup and drbd.conf are using. Signed-off-by:
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
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