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305 Commits

Author SHA1 Message Date
Andreas Gruenbacher 0916e0e308 drbd: Always use the same protocol version for the same peer 
There is no need to send protocol 80 headers to peers that understand
protocol 95 headers.  Make sure that we don't send protocol 95 headers
until we have agreed upon a protocol version with our peer, though.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:51 +01:00
Andreas Gruenbacher 8f7bed7774 drbd: Rename various functions from *_oos_* to *_out_of_sync_* for clarity 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:50 +01:00
Andreas Gruenbacher 3fbf4d21ae drbd: drbd_md_sync_page_io(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:48 +01:00
Andreas Gruenbacher a982dd579c drbd: send_bitmap_rle_or_plain(): Error handling cleanup 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:46 +01:00
Andreas Gruenbacher 99920dc5c5 drbd: Make all worker callbacks return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:43 +01:00
Andreas Gruenbacher b2f0ab62ec drbd: Temporarily change the return type of all worker callbacks 
This helps to ensure that we don't miss one of them when changing their
return value semantics.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:43 +01:00
Andreas Gruenbacher 6bdb9b0e23 drbd: drbd_send_dblock(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:42 +01:00
Andreas Gruenbacher 7fae55da38 drbd: _drbd_send_bio(), _drbd_send_zc_bio(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:42 +01:00
Andreas Gruenbacher 7b57b89d62 drbd: drbd_send_block(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:42 +01:00
Andreas Gruenbacher 9f69230cd6 drbd: _drbd_send_zc_ee(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:41 +01:00
Andreas Gruenbacher 88b390ff63 drbd: _drbd_send_page(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:41 +01:00
Andreas Gruenbacher b987427b53 drbd: _drbd_no_send_page(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:40 +01:00
Andreas Gruenbacher 73218a3c4c drbd: drbd_send_oos(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:40 +01:00
Andreas Gruenbacher db1b0b724e drbd: drbd_send_drequest_csum(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:40 +01:00
Andreas Gruenbacher 6c1005e74d drbd: drbd_send_drequest(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:39 +01:00
Andreas Gruenbacher 5b9f499c66 drbd: drbd_send_ov_request(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:39 +01:00
Andreas Gruenbacher fa79abd893 drbd: drbd_send_ack_ex(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:38 +01:00
Andreas Gruenbacher a9a9994dc7 drbd: drbd_send_ack_{dp,rp}(): Return void: the result is never used 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:38 +01:00
Andreas Gruenbacher dd5161218b drbd: drbd_send_ack(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:38 +01:00
Andreas Gruenbacher a8c32aa846 drbd: _drbd_send_ack(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:37 +01:00
Andreas Gruenbacher d4e67d7c4f drbd: drbd_send_b_ack(): Return void: the result is never used 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:37 +01:00
Andreas Gruenbacher 2f4e7abe51 drbd: drbd_send_sr_reply(): Return void: the result is never used 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:36 +01:00
Andreas Gruenbacher 758970c832 drbd: _conn_send_state_req(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:35 +01:00
Andreas Gruenbacher f02d4d0a9c drbd: drbd_send_sizes(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:35 +01:00
Andreas Gruenbacher 9c1b7f7282 drbd: drbd_gen_and_send_sync_uuid(): Return void: the result is never used 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:34 +01:00
Andreas Gruenbacher 2ae5f95b1a drbd: drbd_send_uuids() and its variants: Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:34 +01:00
Andreas Gruenbacher 387eb30817 drbd: drbd_send_protocol(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:34 +01:00
Andreas Gruenbacher 927036f908 drbd: drbd_send_state(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:33 +01:00
Andreas Gruenbacher 103ea27528 drbd: drbd_send_sync_param(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:33 +01:00
Andreas Gruenbacher f725446353 drbd: drbd_send_cmd(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:32 +01:00
Andreas Gruenbacher 7d168ed30f drbd: Get rid of USE_DATA_SOCKET and USE_META_SOCKET 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:32 +01:00
Andreas Gruenbacher 596a37f9ef drbd: conn_send_cmd(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:31 +01:00
Andreas Gruenbacher 04dfa13788 drbd: _drbd_send_cmd(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:31 +01:00
Andreas Gruenbacher ecf2363cb5 drbd: _conn_send_cmd(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:31 +01:00
Andreas Gruenbacher ce9879cb1f drbd: conn_send_cmd2(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:30 +01:00
Andreas Gruenbacher fb708e408f drbd: Add drbd_send_all(): Send an entire buffer 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:30 +01:00
Andreas Gruenbacher 11b0be28e5 drbd: drbd_get_data_sock(): Return 0 upon success and an error code otherwise 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:29 +01:00
Andreas Gruenbacher c0d42c8e57 drbd: drbd_send(): Return a "real" error code if we have no socket 
Q: Can this case even trigger?  Is failing this way any better than one
that causes a NULL pointer access?

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:29 +01:00
Philipp Reisner e90285e0ba drbd: Fixed conn_lowest_minor 
It actually returned the lowest volume number. While doing that
renamed a few wrongly named variables.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:28 +01:00
Lars Ellenberg f399002e68 drbd: distribute former syncer_conf settings to disk, connection, and resource level 
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: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:20 +01:00
Philipp Reisner 2325eb661f drbd: New minors have to intherit the connection state form their connection 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-04 00:16:25 +01:00
Lars Ellenberg 85f75dd763 drbd: introduce in-kernel "down" command 
This greatly simplifies deconfiguration of whole resources.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-04 00:16:23 +01:00
Lars Ellenberg 543cc10b4c drbd: drbd_adm_get_status needs to show some more detail 
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: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-04 00:16:19 +01:00
Lars Ellenberg 8432b31457 drbd: allow holes in minor and volume id allocation 
s/idr_get_new/idr_get_new_above/

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-04 00:16:17 +01:00
Lars Ellenberg 3b98c0c209 drbd: switch configuration interface from connector to genetlink 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-04 00:16:17 +01:00
Lars Ellenberg 569083c08d drbd: fix drbd_delete_device: remove vnr from volumes; idr_remove(); synchronize_rcu(); before cleanup 
Still missing: rcu_readlock() on the various call sites that
access/iterate over those idrs.

We don't need a specific write lock, as we only modify from
configuration context, which is already strictly serialized.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:48:07 +02:00
Lars Ellenberg da4a75d2ef drbd: introduce a bio_set to allocate housekeeping bios from 
Don't rely on availability of bios from the global fs_bio_set,
we should use our own bio_set for meta data IO.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:48:06 +02:00
Lars Ellenberg 35abf59424 drbd: add page pool to be used for meta data IO 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:48:04 +02:00
Lars Ellenberg 2c4a48d097 drbd: remove unused define 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:48:02 +02:00
Philipp Reisner 81a5d60ecf drbd: Replaced the minor_table array by an idr 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:48:01 +02:00
Philipp Reisner 774b305518 drbd: Implemented new commands to create/delete connections/minors 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:48:00 +02:00
Philipp Reisner 80883197da drbd: Converted drbd_nl_(net_conf|disconnect)() from mdev to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:48:00 +02:00
Philipp Reisner 1aba4d7fcf drbd: Preparing the connector interface to operator on connections 
Up to now it only operated on minor numbers. Now it can work also
on named connections.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:59 +02:00
Philipp Reisner 2f5cdd0b2c drbd: Converted the transfer log from mdev to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:58 +02:00
Andreas Gruenbacher 6e849ce88c drbd: Get rid of P_MAX_CMD 
Instead of artificially enlarging the command decoding arrays to
P_MAX_CMD entries, check if an index is within the valid range using the
ARRAY_SIZE() macro.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:53 +02:00
Andreas Gruenbacher 7be8da0798 drbd: Improve how conflicting writes are handled 
The previous algorithm for dealing with overlapping concurrent writes
was generating unnecessary warnings for scenarios which could be
legitimate, and did not always handle partially overlapping requests
correctly.  Improve it algorithm as follows:

* While local or remote write requests are in progress, conflicting new
  local write requests will be delayed (commit 82172f7).

* When a conflict between a local and remote write request is detected,
  the node with the discard flag decides how to resolve the conflict: It
  will ask its peer to discard conflicting requests which are fully
  contained in the local request and retry requests which overlap only
  partially.  This involves a protocol change.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:51 +02:00
Andreas Gruenbacher 8ccf218e9f drbd: Replace atomic_add_return with atomic_inc_return 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:50 +02:00
Lars Ellenberg 7ad651b522 drbd: new on-disk activity log transaction format 
Use a new on-disk transaction format for the activity log, which allows
for multiple changes to the active set per transaction.

Using 4k transaction blocks, we can now get rid of the work-around code
to deal with devices not supporting 512 byte logical block size.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:46 +02:00
Lars Ellenberg 4738fa1690 drbd: use clear_bit_unlock() where appropriate 
Some open-coded clear_bit(); smp_mb__after_clear_bit();
should in fact have been smp_mb__before_clear_bit(); clear_bit();

Instead, use clear_bit_unlock() to annotate the intention,
and have it do the right thing.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:42 +02:00
Philipp Reisner 047cd4a682 drbd: implemented receiving of P_CONN_ST_CHG_REQ 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:45:05 +02:00
Philipp Reisner cf29c9d8c8 drbd: Implemented conn_send_state_req() 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:45:02 +02:00
Philipp Reisner 8410da8f0e drbd: Introduced tconn->cstate_mutex 
In compatibility mode with old DRBDs, use that as the state_mutex
as well.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:45:01 +02:00
Philipp Reisner bbeb641c3e drbd: Killed volume0; last step of multi-volume-enablement 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:44:58 +02:00
Philipp Reisner 2a67d8b93b drbd: Converted drbd_send_ping() and related functions from mdev to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:16 +02:00
Philipp Reisner 00d56944ff drbd: Generalized the work callbacks 
No longer work callbacks must operate on a mdev. From now on they
can also operate on a tconn.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:15 +02:00
Philipp Reisner 6699b65533 drbd: Moved some initializing code into drbd_new_tconn() 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:14 +02:00
Philipp Reisner 392c880192 drbd: drbd_thread has now a pointer to a tconn instead of to a mdev 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:13 +02:00
Philipp Reisner f1b3a6ec7d drbd: Consolidated the setup of the thread name into the framework 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:09 +02:00
Philipp Reisner a21e929827 drbd: Moved the mdev member into drbd_work (from drbd_request and drbd_peer_request) 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:08 +02:00
Philipp Reisner 360cc74052 drbd: Converted drbd_free_sock() and drbd_disconnect() from mdev to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:06 +02:00
Philipp Reisner 808222845d drbd: Converted drbd_calc_cpu_mask() and drbd_thread_current_set_cpu() from mdev to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:04 +02:00
Philipp Reisner 062e879c8b drbd: Use and idr data structure to map volume numbers to mdev pointers 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:02 +02:00
Philipp Reisner dc8228d107 drbd: Converted drbd_send_protocol() from mdev to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:01 +02:00
Philipp Reisner 611208706f drbd: Converted drbd_(get|put)_data_sock() and drbd_send_cmd2() to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:32:59 +02:00
Philipp Reisner d38e787ecc drbd: Converted drbd_send_fp() from mdev to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:29:45 +02:00
Philipp Reisner bedbd2a53a drbd: Converted drbd_send() from mdev to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:27:00 +02:00
Philipp Reisner 1a7ba646e9 drbd: Converted helper functions for drbd_send() to tconn 
* drbd_update_congested()
* we_should_drop_the_connection()

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:59 +02:00
Philipp Reisner 0625ac190d drbd: Converted wake_asender() and request_ping() from mdev to tconn 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:58 +02:00
Philipp Reisner 01a311a589 drbd: Started to separated connection flags (tconn) from block device flags (mdev) 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:54 +02:00
Philipp Reisner 60ae496626 drbd: conn_printk() a dev_printk() alike for drbd's connections 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:50 +02:00
Philipp Reisner 8ea62f5464 drbd: Revert "Make sure we dont send state if a cluster wide state change is in progress" 
This reverts commit 6e9fdc92b77915d5c7ab8fea751f48378f8b0080.

1) This did not fixed the issue
2) Long sleeping work items can cause IO requests to take as long as
   the longest work item

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:48 +02:00
Philipp Reisner bc31fe3352 drbd: Eliminated the user of drbd_task_to_thread() 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:45 +02:00
Philipp Reisner bed879ae90 drbd: Moved the thread name into the data structure 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:44 +02:00
Philipp Reisner b890733953 drbd: Moved the state functions into its own source file 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:43 +02:00
Andreas Gruenbacher db830c464b drbd: Local variable renames: e -> peer_req 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:42 +02:00
Andreas Gruenbacher 6c852beca1 drbd: Update some comments 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:41 +02:00
Andreas Gruenbacher f6ffca9f42 drbd: Rename struct drbd_epoch_entry to struct drbd_peer_request 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:39 +02:00
Andreas Gruenbacher 5e4722645a drbd: _req_conflicts(): Get rid of the epoch_entries tree 
Instead of keeping a separate tree for local and remote write requests
for finding requests and for conflict detection, use the same tree for
both purposes.  Introduce a flag to allow distinguishing the two
possible types of entries in this tree.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:32 +02:00
Andreas Gruenbacher 9e204cddaf drbd: Move some functions to where they are used 
Move drbd_update_congested() to drbd_main.c, and drbd_req_new() and
drbd_req_free() to drbd_req.c: those functions are not used anywhere
else.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:28 +02:00
Andreas Gruenbacher cc378270e4 drbd: Initialize the sequence number sent over the network even when not used 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:26 +02:00
Andreas Gruenbacher bdc7adb006 drbd: Remove redundant initialization 
packet_seq is initialized by both sides of a connection in
drbd_connect().

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:25 +02:00
Andreas Gruenbacher d876302306 drbd: Rename "enum drbd_packets" to "enum drbd_packet" 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:24 +02:00
Andreas Gruenbacher f2ad906379 drbd: Move cmdname() out of drbd_int.h 
There is no good reason for cmdname() to be an inline function.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:23 +02:00
Philipp Reisner b42a70ad32 drbd: Do not access tconn after it was freed 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:26:22 +02:00
Philipp Reisner fd340c12c9 drbd: Use new header layout 
The new header layout will only be used if the peer supports
it of course.

For the first packet and the handshake packet the old (h80)
layout is used for compatibility reasons.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:23:03 +02:00
Philipp Reisner c012949a40 drbd: Replaced all p_header80 with a generic p_header 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:30:26 +02:00
Philipp Reisner a0638456c6 drbd: moved crypto transformations and friends from mdev to tconn 
sed -i \
       -e 's/mdev->cram_hmac_tfm/mdev->tconn->cram_hmac_tfm/g' \
       -e 's/mdev->integrity_w_tfm/mdev->tconn->integrity_w_tfm/g' \
       -e 's/mdev->integrity_r_tfm/mdev->tconn->integrity_r_tfm/g' \
       -e 's/mdev->int_dig_out/mdev->tconn->int_dig_out/g' \
       -e 's/mdev->int_dig_in/mdev->tconn->int_dig_in/g' \
       -e 's/mdev->int_dig_vv/mdev->tconn->int_dig_vv/g' \
       *.[ch]

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:30:23 +02:00
Philipp Reisner 87eeee41f8 drbd: moved req_lock and transfer log from mdev to tconn 
sed -i \
       -e 's/mdev->req_lock/mdev->tconn->req_lock/g' \
       -e 's/mdev->unused_spare_tle/mdev->tconn->unused_spare_tle/g' \
       -e 's/mdev->newest_tle/mdev->tconn->newest_tle/g' \
       -e 's/mdev->oldest_tle/mdev->tconn->oldest_tle/g' \
       -e 's/mdev->out_of_sequence_requests/mdev->tconn->out_of_sequence_requests/g' \
       *.[ch]

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:30:15 +02:00
Philipp Reisner 31890f4ab2 drbd: moved agreed_pro_version, last_received and ko_count to tconn 
sed -i \
       -e 's/mdev->agreed_pro_version/mdev->tconn->agreed_pro_version/g' \
       -e 's/mdev->last_received/mdev->tconn->last_received/g' \
       -e 's/mdev->ko_count/mdev->tconn->ko_count/g' \
       *.[ch]

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:27:07 +02:00
Philipp Reisner e6b3ea83bc drbd: moved receiver, worker and asender from mdev to tconn 
Patch mostly:
sed -i -e 's/mdev->receiver/mdev->tconn->receiver/g' \
       -e 's/mdev->worker/mdev->tconn->worker/g' \
       -e 's/mdev->asender/mdev->tconn->asender/g' \
       *.[ch]

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:27:06 +02:00