xen/blkfront: map REQ_FLUSH into a full barrier
authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Mon, 1 Nov 2010 18:32:27 +0000 (14:32 -0400)
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tue, 2 Nov 2010 14:43:51 +0000 (10:43 -0400)
commitc64e38ea17a81721da0393584fd807f8434050fa
treeb4c7203aa006fd618cb3477fcddf8c74b509da3f
parentc8ddb2713c624f432fa5fe3c7ecffcdda46ea0d4
xen/blkfront: map REQ_FLUSH into a full barrier

Implement a flush as a full barrier, since we have nothing weaker.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Christoph Hellwig <hch@lst.de>
drivers/block/xen-blkfront.c