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360cc74052
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186 Commits

Author SHA1 Message Date
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
Philipp Reisner
e42325a576 drbd: moved data and meta from mdev to tconn 
Patch mostly:

sed -i -e 's/mdev->data/mdev->tconn->data/g' \
       -e 's/mdev->meta/mdev->tconn->meta/g' \
       *.[ch]

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:27:05 +02:00
Philipp Reisner
b2fb6dbe52 drbd: moved net_cont and net_cnt_wait from mdev to tconn 
Patch partly generated by:

sed -i -e 's/get_net_conf(mdev)/get_net_conf(mdev->tconn)/g' \
       -e 's/put_net_conf(mdev)/put_net_conf(mdev->tconn)/g' \
       -e 's/get_net_conf(odev)/get_net_conf(odev->tconn)/g' \
       -e 's/put_net_conf(odev)/put_net_conf(odev->tconn)/g' \
       *.[ch]

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:27:04 +02:00
Philipp Reisner
89e58e755e drbd: moved net_conf from mdev to tconn 
Besides moving the struct member, everything else is generated by:

sed -i -e 's/mdev->net_conf/mdev->tconn->net_conf/g' \
       -e 's/odev->net_conf/odev->tconn->net_conf/g' \
       *.[ch]

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:27:03 +02:00
Philipp Reisner
2111438b30 drbd: Minimal struct drbd_tconn 
Starting to dissolve the network connection from the actual
block devices.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:27:02 +02:00
Andreas Gruenbacher
70dc65e1b3 drbd: Remove some useless paranoia code 
The open_cnt check is an open-coded D_ASSERT() check.

In case the data.work queue is not empty, it does not really help to
know which drbd_work elements remained on that list: they will be freed
immediately afterwards, anyway.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:26:58 +02:00
Andreas Gruenbacher
841ce241fa drbd: Replace the ERR_IF macro with an assert-like macro 
Remove the file name and line number from the syslog messages generated:
we have no duplicate function names, and no function contains the same
assertion more than once.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:26:57 +02:00
Andreas Gruenbacher
e77a0a5cc1 drbd: Convert all constants in enum drbd_thread_state to upper case 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:26:56 +02:00
Andreas Gruenbacher
8554df1c6d drbd: Convert all constants in enum drbd_req_event to upper case 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:26:55 +02:00
Andreas Gruenbacher
bb3bfe9614 drbd: Remove the unused hash tables 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:26:54 +02:00
Andreas Gruenbacher
8b946255f8 drbd: Use interval tree for overlapping epoch entry detection 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:26:53 +02:00
Andreas Gruenbacher
010f6e678f drbd: Put sector and size in struct drbd_epoch_entry into struct drbd_interval 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:26:52 +02:00
Andreas Gruenbacher
dac1389ccc drbd: Add read_requests tree 
We do not do collision detection for read requests, but we still need to
look up the request objects when we receive a package over the network.
Using the same data structure for read and write requests results in
simpler code once the tl_hash and app_reads_hash tables are removed.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-29 11:26:31 +02:00
Andreas Gruenbacher
de696716e8 drbd: Use interval tree for overlapping write request detection 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-25 14:58:06 +02:00
Andreas Gruenbacher
ace652acf2 drbd: Put sector and size in struct drbd_request into struct drbd_interval 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-25 14:58:05 +02:00
Andreas Gruenbacher
d628769b3c drbd: Move drbd_free_tl_hash() to drbd_main() 
This is the only place where this function is used.  Make it static.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-25 14:57:58 +02:00
Andreas Gruenbacher
e7fad8af75 drbd: Endianness convert the constants instead of the variables 
Converting the constants happens at compile time.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-25 14:57:57 +02:00
Andreas Gruenbacher
ca9bc12b90 drbd: Get rid of BE_DRBD_MAGIC and BE_DRBD_MAGIC_BIG 
Converting the constants happens at compile time.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-25 14:57:56 +02:00
Andreas Gruenbacher
9a8e77530f drbd: Consistently use block_id == ID_SYNCER for checksum based resync and online verify 
DRBD_MAGIC has nothing to do with block ids and the funny values
computed were not actually used, anyway.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
 2011-08-25 14:57:55 +02:00
Bart Van Assche
24c4830c8e drbd: Fix spelling 
Found these with the help of ispell -l.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
 2011-05-24 10:21:29 +02:00