tree b5f0b09749ef3615c59fa2ad3cf3e721f6b123c3
parent cccac9857d624dab74b23bafe0482fcdd91df7d8
author Lars Ellenberg <lars.ellenberg@linbit.com> 1363713407 +0100
committer Jens Axboe <axboe@kernel.dk> 1363997639 -0600

drbd: read meta data early, base on-disk offsets on super block

We used to calculate all on-disk meta data offsets, and then compare
the stored offsets, basically treating them as magic numbers.

Now with the activity log striping, the activity log size is no longer
fixed.  We need to first read the super block, then base the activity
log and bitmap offsets on the stored offsets/al stripe settings.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>