- 08 11月, 2012 33 次提交
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由 Lars Ellenberg 提交于
If a forced disconnect hits a restarting receiver right after it passed its final "if (C_DISCONNECTING)" test in drbdd_init(), but before it was actually restarted by drbd_thread_setup, we could be left with a connection stuck in C_DISCONNECTING, never reaching C_STANDALONE, which would be necessary to take it down or reconfigure it. Move the last cleanup into w_after_conn_state_ch(), and do an additional state change request in conn_try_disconnect(), just in case. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Andreas Gruenbacher 提交于
The main purpose of this is to allow to turn data integrity checking on and off on demand without causing interruptions. Implemented by allocating tconn->peer_integrity_tfm only when receiving a P_PROTOCOL message. l accesses to tconn->peer_integrity_tf happen in worker context, and no further synchronization is necessary. On the sender side, tconn->integrity_tfm is modified under tconn->data.mutex, and a P_PROTOCOL message is sent whenever. All accesses to tconn->integrity_tfm already happen under this mutex. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Andreas Gruenbacher 提交于
We allocate hash transformations with crypto_alloc_hash() which will only return hash algorithms. It is not necessary to reconfirm that we actually got a hash algorithm. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Andreas Gruenbacher 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Andreas Gruenbacher 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
sc was short for syncer conf, which does not exist anymore anyways. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
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: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
So for this was simply not considered after the options have been re-arranged. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
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: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
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: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
superseded by refcounting Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Rule #3 of kref.txt Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
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: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
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: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Removing the get_net_conf()/put_net_conf() functions Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Removing the get_net_conf()/put_net_conf() calls Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
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: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Andreas Gruenbacher 提交于
The 8 byte header finally becomes too small. With the protocol 100 header we have 16 bit for the volume number, proper 32 bit for the data length, and 32 bit for further extensions in the future. Previous versions of drbd are using version 80 headers for all packets short enough for protocol 80. They support both header versions in worker context, but only version 80 headers in asynchronous context. For backwards compatibility, continue to use version 80 headers for short packets before protocol version 100. From protocol version 100 on, use the same header version for all packets. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Andreas Gruenbacher 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Andreas Gruenbacher 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Philipp Reisner 提交于
It actually returned the lowest volume number. While doing that renamed a few wrongly named variables. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
This commit breaks the API again. Move per-volume former syncer options into disk_conf. Move per-connection former syncer options into net_conf. Renamed the remainign sync_conf to res_opts Syncer settings have been changeable at runtime, so we need to prepare for these settings to be runtime-changeable in their new home as well. Introduce new configuration operations, and share the netlink attribute between "attach" (create new disk) and "disk-opts" (change options). Same for "connect" and "net-opts". Some fields cannot be changed at runtime, however. Introduce a new flag GENLA_F_INVARIANT to be able to trigger on that in the generated validation and assignment functions. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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- 04 11月, 2012 7 次提交
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
If drbd_adm_attach failed early, it left the CONFIG_PENDING bit on, blocking any further conn_reconfig_start on that connection. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
This greatly simplifies deconfiguration of whole resources. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
We have resources resp. connections, volumes, and minor numbers. A config request may specifies all three of them. If it turns out that the minor belongs to a different connection, or a different volume number in the same connection, that configuration request is invalid. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
Follow O_CREAT semantics when creating connection or minor device/volume objects. If we need O_CREAT|O_EXCL semantics some time down the road, we can add NLM_F_EXCL to the netlink message flags. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
Even if the connection is still established. We should be able to reduce a volume from a replication group, without taking the whole group offline. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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由 Lars Ellenberg 提交于
We want to see existing connection objects, even if they do not currently have volumes attached. Change the .dumpit variant of drbd_adm_get_status to iterate not over minor devices, but over connections + volumes. Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com>
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