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xen/blkfront: cope with backend that fail empty BLKIF_OP_WRITE_BARRIER requests
authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tue, 2 Nov 2010 15:55:58 +0000 (11:55 -0400)
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tue, 2 Nov 2010 17:46:46 +0000 (13:46 -0400)
Some(?) Xen block backends fail BLKIF_OP_WRITE_BARRIER requests, which
Linux uses as a cache flush operation.  In that case, disable use
of FLUSH.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Daniel Stodden <daniel.stodden@citrix.com>
drivers/block/xen-blkfront.c patch | blob | history

diff --cc drivers/block/xen-blkfront.c
Simple merge
Pandora Kernel Repository