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path: root/drivers/block/drbd/drbd_state.h (follow)
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2014-11-10drbd: fix race between role change and handshakePhilipp Reisner1-0/+5
Symptoms: If DRBD was "cleanly shut down" (all in sync, both Secondary before disconnect, identical data generation uuids), and then one side was promoted *during* the next connection handshake, the role change could confuse the handshake. The Primary would get stuck in WFBitmapS, the Secondary would log unexpected cstate (Connected) in receive_bitmap and get stuck in WFBitmapT. Fix: The test in is_valid_soft_transition wrong. It works because the not allowed actions (promote/attach) do not touch the cstate. The previous condition failed to demand a cstate change in one clause. In order to avoid deadlocks give up the state_mutex while waiting for the transient state to go away. Conflicts: drbd/drbd_state.c drbd/drbd_state.h drbd/drbd_wrappers.h Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2014-02-17drbd: Rename drbd_tconn -> drbd_connectionAndreas Gruenbacher1-10/+10
sed -i -e 's:all_tconn:connections:g' -e 's:tconn:connection:g' Signed-off-by: Andreas Gruenbacher <agruen@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
2014-02-17drbd: Rename "mdev" to "device"Andreas Gruenbacher1-5/+5
sed -i -e 's:mdev:device:g' Signed-off-by: Andreas Gruenbacher <agruen@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
2014-02-17drbd: Rename struct drbd_conf -> struct drbd_deviceAndreas Gruenbacher1-8/+8
sed -i -e 's:\<drbd_conf\>:drbd_device:g' Signed-off-by: Andreas Gruenbacher <agruen@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
2012-11-08drbd: Improved logging of state changesPhilipp Reisner1-1/+2
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2012-11-08drbd: Implemented conn_lowest_disk()Philipp Reisner1-0/+1
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2012-11-08drbd: Implemented conn_lowest_conn()Philipp Reisner1-0/+1
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2012-11-08drbd: Introduced a new type union drbd_dev_statePhilipp Reisner1-0/+34
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2012-11-08drbd: Introduced drbd_read_state()Philipp Reisner1-3/+3
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2012-11-08drbd: Allow to disconnect if one volume is disklessPhilipp Reisner1-0/+1
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2012-11-08drbd: Print common state changes of all volumes as connection state changesPhilipp Reisner1-7/+12
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2012-11-08drbd: Converted drbd_try_outdate_peer() from mdev to tconnPhilipp Reisner1-0/+5
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2012-11-04drbd: simplify conn_all_vols_unconf, make it boolLars Ellenberg1-1/+1
Get rid of a temporary variable and, funny bitand assignment. Just short circuit, returning false, once we encounter the first still configured volume. FIXME verify call sites for need of rcu_read_lock or stronger. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-10-14drbd: Reworked the unconfiguring and thread stopping codePhilipp Reisner1-0/+1
* Moved CONFIG_PENDING and DEVICE_DYING from mdev to tconn. * Renamed drbd_reconfig_start() and drbd_reconfig_done() to conn_reconfig_start() and conn_reconfig_done(). Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-10-14drbd: implemented receiving of P_CONN_ST_CHG_REQPhilipp Reisner1-0/+1
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-10-14drbd: Killed volume0; last step of multi-volume-enablementPhilipp Reisner1-0/+10
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 Reisner1-0/+101
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
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