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058820cdd7
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257 Commits

Author SHA1 Message Date
Andreas Gruenbacher
058820cdd7 drbd: Make _drbd_send_bitmap() static 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:52 +01:00
Andreas Gruenbacher
e307f352b4 drbd: Move drbd_send_ping() and drbd_send_ping_ack() to drbd_main.c 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2012-11-08 16:44:52 +01:00
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