tree a2cfa89a0b77fe22160ca51767c37269c677b263
parent 4afc433cf8066c112bd2bdd949d78ff8e8b4ba3f
author Philipp Reisner <philipp.reisner@linbit.com> 1323882081 +0100
committer Philipp Reisner <philipp.reisner@linbit.com> 1336569390 +0200

drbd: Consider the disk-timeout also for meta-data IO operations

If the backing device is already frozen during attach, we failed
to recognize that. The current disk-timeout code works on top
of the drbd_request objects. During attach we do not allow IO
and therefore never generate a drbd_request object but block
before that in drbd_make_request().

This patch adds the timeout to all drbd_md_sync_page_io().

Before this patch we used to go from D_ATTACHING directly
to D_DISKLESS if IO failed during attach. We can no longer
do this since we have to stay in D_FAILED until all IO
ops issued to the backing device returned.

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