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484 Commits (45dfffebd08c1445493bfa8f0ec05b38714b9b2d)

Author SHA1 Message Date
Lars Ellenberg 45dfffebd0 drbd: allow to select specific bitmap pages for writeout 
We are about to allow several changes to the active set in one activity
log transaction. We have to write out the corresponding bitmap pages as
well, if changed.

Introduce drbd_bm_mark_for_writeout(), then re-use the existing bitmap
writeout path to submit all marked pages in one go.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:44 +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
Lars Ellenberg 61610420f7 drbd: in drbd_suspend_al, set AL_SUSPENDED before unlocking the activity log 
As using an empty activity log is the whole point of the excercise,
make sure it is still empty when setting AL_SUSPENDED.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:41 +02:00
Lars Ellenberg 867f57483b drbd: fix typo in comment 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:40 +02:00
Lars Ellenberg 8c387def58 drbd: simplify condition in drbd_may_do_local_read() 
fold
	if (x >= (N+1))
		return 0;
	if (x < N)
		return 0;
into
	if (x != N)
		return 0;

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:39 +02:00
Andreas Gruenbacher c670a39867 drbd: Use the IS_ALIGNED() macro in some more places 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:39 +02:00
Andreas Gruenbacher 8ca9844f10 drbd: Remove obsolete comment 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:38 +02:00
Andreas Gruenbacher d0e22a260c drbd: Iterate over all overlapping intervals in a tree 
Add a macro and helper function for doing that.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:37 +02:00
Andreas Gruenbacher fcefa62e4c drbd: Rename drbd_endio_{pri,sec} -> drbd_{,peer_}request_endio 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:36 +02:00
Andreas Gruenbacher fbe29dec98 drbd: Rename drbd_submit_ee -> drbd_submit_peer_request 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:35 +02:00
Philipp Reisner df24aa45f4 drbd: Implemented connection wide state changes 
That is used for graceful disconnect only

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:47:32 +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 fc3b10a45f drbd: Implemented receiving of P_CONN_ST_CHG_REPLY 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:45:04 +02:00
Philipp Reisner 5aabf467e3 drbd: Global_state_lock not necessary here... 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-10-14 16:45:03 +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 dad2055481 drbd: Removed drbd_state_lock() and drbd_state_unlock() 
The lock they constructed is only taken when the state_mutex
was already taken. It is superficial.

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 56707f9e87 drbd: Code de-duplication; new function apply_mask_val() 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:22 +02:00
Philipp Reisner 4308a0a390 drbd: Removed the os parameter form sanitize_state() 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:21 +02:00
Philipp Reisner fda74117dc drbd: Extracted is_valid_conn_transition() out of is_valid_transition() 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:20 +02:00
Philipp Reisner 3509502dc8 drbd: Extracted is_valid_transition() out of sanitize_state() 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:19 +02:00
Philipp Reisner a75f34ad0c drbd: Renamed is_valid_state_transition() to is_valid_soft_transition() 
And removed the unused mdev parameter, and made the order of
the state parameters: os, ns

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:18 +02:00
Philipp Reisner d50eee21c4 drbd: Extracted after_conn_state_ch() out of after_state_ch() 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:17 +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 19393e105f drbd: Converted drbd_worker() 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 10:33:12 +02:00
Philipp Reisner 32862ec705 drbd: Converted drbd_asender() 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 10:33:11 +02:00
Philipp Reisner 4d641dd7b0 drbd: Converted drbdd_init() 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 10:33:10 +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 eefc2f7de2 drbd: Converted drbdd() from mdev to tconn 
The drbd_md_sync(mdev) happens in the after state change anyways...

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:33:05 +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 907599e044 drbd: Converted drbd_connect() 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 10:33:03 +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 13e6037dc9 drbd: Converted drbd_do_auth() 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 10:33:00 +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 65d11ed6f2 drbd: Converted drbd_do_handshake() 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 10:32:58 +02:00
Philipp Reisner 9ba7aa00ae drbd: Converted drbd_recv_header() 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 10:32:57 +02:00
Philipp Reisner ce24385342 drbd: Converted decode_header() 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 10:32:56 +02:00
Philipp Reisner 77351055b5 drbd: struct packet_info to hold information of decoded packets 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:32:50 +02:00
Philipp Reisner de0ff338d6 drbd: Converted drbd_recv() 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 10:29:52 +02:00
Philipp Reisner 8a22cccc20 drbd: Converted drbd_send_handshake() 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 10:29:50 +02:00
Philipp Reisner a25b63f1e7 drbd: Converted drbd_recv_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 10:29:49 +02:00
Philipp Reisner dbd9eea094 drbd: Removed unused mdev argument from drbd_recv_short() and drbd_socket_okay() 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-09-28 10:29:48 +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