tree b4a702fefd94689682a6be89773ef7c59f20db59
parent db141b2f42b485b700465fe2401fbe65c65b190c
author Lars Ellenberg <lars.ellenberg@linbit.com> 1340644538 +0200
committer Philipp Reisner <philipp.reisner@linbit.com> 1343135668 +0200

drbd: announce FLUSH/FUA capability to upper layers

Unconditionally announce FLUSH/FUA to upper layers.
If the lower layers on either node do not actually support this,
generic_make_request() will deal with it.

If this causes performance regressions on your setup,
make sure there are no volatile caches involved,
and mount -o nobarrier or equivalent.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>