From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Mon, 30 Jul 2012 07:00:54 +0000 (+0200)
Subject: drbd: announce FLUSH/FUA capability to upper layers
X-Git-Tag: v3.8-rc1~78^2~18^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=81a3537a9730116dfaafeed728f2d460c872c0d5;p=pandora-kernel.git

drbd: announce FLUSH/FUA capability to upper layers

In 8.4, we may have bios spanning two activity log extents.
Fixup drbd_al_begin_io() and drbd_al_complete_io() to deal with zero sized bios.

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