From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Wed, 4 May 2011 21:07:27 +0000 (-0400)
Subject: xen/blkback: Add support for BLKIF_OP_FLUSH_DISKCACHE and drop BLKIF_OP_WRITE_BARRIER.
X-Git-Tag: v3.0-rc1~162^2~16^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=24f567f952aa308c3352f3340b9d296fc72bd066;p=pandora-kernel.git

xen/blkback: Add support for BLKIF_OP_FLUSH_DISKCACHE and drop BLKIF_OP_WRITE_BARRIER.

We drop the support for 'feature-barrier' and add in the support
for the 'feature-flush-cache' if the real backend storage supports
flushing.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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