drbd: track details of bitmap IO
authorLars Ellenberg <lars.ellenberg@linbit.com>
Mon, 5 May 2014 22:44:59 +0000 (00:44 +0200)
committerPhilipp Reisner <philipp.reisner@linbit.com>
Thu, 10 Jul 2014 16:35:15 +0000 (18:35 +0200)
Track start and submit time of bitmap operations, and
add pending bitmap IO contexts to a new pending_bitmap_io list.

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

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