- 08 Nov, 2012 40 commits
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Andreas Gruenbacher authored
Signed-off-by:
Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by:
Lars Ellenberg <lars.ellenberg@linbit.com>
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
It is not enough to grab net_conf->integrity_alg under rcu_read_lock() and access it outside of it; the entire net_conf object may be gone by then. Signed-off-by:
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Lars Ellenberg authored
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Lars Ellenberg authored
sc was short for syncer conf, which does not exist anymore anyways. Signed-off-by:
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Lars Ellenberg authored
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Lars Ellenberg authored
The DRBD_GENL_F_SET_DEFAULTS flag was ignored for drbd_adm_disk_opts() and drbd_adm_net_opts(). Factor out drbd_set_*_defaults() helper functions, and call them appropriately. Signed-off-by:
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Philipp Reisner authored
So for this was simply not considered after the options have been re-arranged. Signed-off-by:
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Lars Ellenberg authored
If an admin requests disconnect at a time when the state handling already disconnects/reconnects, there have been some races. Make sure to always really stop the network threads before returning success for disconnect. Do not pretend successfull forced disconnect, if the state handling returned an error. Return success from drbd_adm_down() only after all threads are finished. Signed-off-by:
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Lars Ellenberg authored
Calling kobject_uevent, which may sleep, from within rcu_read_lock() protected regions is not possible. This particular kobject_uevent also is also wrong. It was supposed to trigger a udev run, just in case something relevant to udev symlink magic has changed, when adjusting runtime re-configurable settings while we still had the "syncer conf". It was improperly placed in connect when we dropped the "syncer conf". The right thing to do is probably to call "udevadm trigger" directly in those cases where drbdadm thinks there was a need to trigger extra udev runs. Signed-off-by:
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Philipp Reisner authored
superseded by refcounting Signed-off-by:
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Philipp Reisner authored
Rule #3 of kref.txt Signed-off-by:
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Philipp Reisner authored
References hold by: * Each (running) drbd thread has a reference on tconn * Each mdev has a referenc on tconn * Beeing in the all_tconn list counts for one reference * Each after_conn_state_chg_work has a reference to tconn Signed-off-by:
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Philipp Reisner authored
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Lars Ellenberg authored
When the last volume of a replication group is unconfigured, the worker thread exits. To not interfere with cleanup of other threads, before the the last cleanups run, we need to make sure the receiver has already exited. The commend explaining that clearly belongs above drbd_thread_stop(&tconn->receiver), not in the cleanup loop below. Signed-off-by:
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Lars Ellenberg authored
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Lars Ellenberg authored
We use our own copy of kernel_setsockopt, and did not mess around with get_fs/set_fs, since we thought we knew we would always be KERNEL_DS anyways. Apparently not so for at least user mode linux, so put the set_fs(KERNEL_DS) in there. Signed-off-by:
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Lars Ellenberg authored
We had drbd_adm_get_status (one single volume), and drbd_adm_get_status_all (dump of all volumes of all resources). This enhances the latter to be able to dump all volumes of just one specific resource. Signed-off-by:
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Philipp Reisner authored
Now since it is possible to change the two_primaries config flag while the connection is up, make sure we treat a peer_req in a consistent way if the config flag changes while the peer_req is under IO. Signed-off-by:
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Philipp Reisner authored
Removing the get_net_conf()/put_net_conf() functions Signed-off-by:
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Philipp Reisner authored
Removing the get_net_conf()/put_net_conf() calls Signed-off-by:
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Philipp Reisner authored
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Philipp Reisner authored
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Philipp Reisner authored
The wire protocol is no longer a property that is negotiated between the two peers. It is now expressed with two bits (DP_SEND_WRITE_ACK and DP_SEND_RECEIVE_ACK) in each data packet. Therefore the primary node is free to change the wire protocol at any time without disconnect/reconnect. Signed-off-by:
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Philipp Reisner authored
With this commit the locking for all accesses to IDRs is complete: * Non sleeping read accesses are protected by RCU * sleeping read accesses are protocted by a read lock on drbd_cfg_rwsem * accesses that add anything are protected by a write lock * accesses that remove an object are protoected by a write lock and a call to synchronize_rcu() after it is removed from the IDR and before the object is actually free()ed. 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
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
drbd: Rename reclaim_net_ee(), drbd_process_done_ee(), drbd_process_done_ee(), tconn_process_done_ee() to *_peer_reqs Signed-off-by:
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Andreas Gruenbacher authored
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Andreas Gruenbacher authored
Signed-off-by:
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Andreas Gruenbacher authored
Signed-off-by:
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Andreas Gruenbacher authored
Signed-off-by:
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Andreas Gruenbacher authored
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