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2011-09-28drbd: Converted drbdd() from mdev to tconnPhilipp Reisner
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>
2011-09-28drbd: Converted drbd_calc_cpu_mask() and drbd_thread_current_set_cpu() from ↵Philipp Reisner
mdev to tconn Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_connect() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Use and idr data structure to map volume numbers to mdev pointersPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_send_protocol() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_do_auth() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_(get|put)_data_sock() and drbd_send_cmd2() to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_do_handshake() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_recv_header() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted decode_header() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: struct packet_info to hold information of decoded packetsPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_recv() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_send_handshake() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_recv_fp() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Removed unused mdev argument from drbd_recv_short() and drbd_socket_okay()Philipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_send_fp() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_send() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted helper functions for drbd_send() to tconnPhilipp Reisner
* 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>
2011-09-28drbd: Converted wake_asender() and request_ping() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Moved SIGNAL_ASENDER to the per connection (tconn) flagsPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Moved SEND_PING to the per connection (tconn) flagsPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Moved DISCARD_CONCURRENT to the per connection (tconn) flagsPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Started to separated connection flags (tconn) from block device flags ↵Philipp Reisner
(mdev) Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_wait_for_connect() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Converted drbd_try_connect() from mdev to tconnPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: conn_printk() a dev_printk() alike for drbd's connectionsPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Moving state related macros to drbd_state.hPhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Revert "Make sure we dont send state if a cluster wide state change is ↵Philipp Reisner
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>
2011-09-28drbd: Do no sleep long in drbd_start_resyncPhilipp Reisner
Work items that sleep too long can cause requests to take as long as the longest sleeping work item. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Moved codePhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Eliminated the user of drbd_task_to_thread()Philipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Moved the thread name into the data structurePhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Moved the state functions into its own source filePhilipp Reisner
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Local variable renames: e -> peer_reqAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Update some commentsAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Clean up some left-oversAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Rename struct drbd_epoch_entry to struct drbd_peer_requestAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Remove unused variable in struct drbd_confAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Improve the drbd_find_overlap() documentationAndreas Gruenbacher
Describe how to reach any further overlapping intervals from the first overlap found. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Make the peer_seq updating code more obviousAndreas Gruenbacher
Make it more clear that update_peer_seq() is supposed to wake up the seq_wait queue whenever the sequence number changes. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Defer new writes when detecting conflicting writesAndreas Gruenbacher
Before submitting a new local write request, wait for any conflicting local or remote requests to complete. We could assume that the new request occurred first and that the conflicting requests overwrote it (and therefore discard the new reques), but we know for sure that the new request occurred after the conflicting requests and so this behavior would we weird. We would also end up with the wrong result if the new request is not fully contained within the conflicting requests. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Remove unnecessary reference counting left-overAndreas Gruenbacher
Nothing in this function accesses mdev->tconn->net_conf, so there is no need for get_net_conf() / put_net_conf() anymore. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: _req_conflicts(): Get rid of the epoch_entries treeAndreas Gruenbacher
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>
2011-09-28drbd: Allow to wait for the completion of an epoch entry as wellAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Remove redundant check from drbd_contains_interval()Andreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: struct drbd_request: Introduce a new collision flagAndreas Gruenbacher
This flag is set when a processes puts itself to sleep to wait for a conflicting request to complete. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Move some functions to where they are usedAndreas Gruenbacher
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>
2011-09-28drbd: Move sequence number logic into drbd_receiver.c and simplify itAndreas Gruenbacher
These things are only used there. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Initialize the sequence number sent over the network even when not usedAndreas Gruenbacher
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-09-28drbd: Remove redundant initializationAndreas Gruenbacher
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>
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