K 10
svn:author
V 6
bryanv
K 8
svn:date
V 27
2013-07-03T02:11:05.213957Z
K 7
svn:log
V 408
virtio_blk: Improve write cache handling

Follow the exact wording of the spec and check for
VIRTIO_BLK_F_CONFIG_WCE support before falling back
to VIRTIO_BLK_F_WCE. Always tell GEOM we support flush
cache even though it is a noop in writethrough mode.

Add sysctl handler to change the write cache mode when
CONFIG_WCE is supported.

Add support and update man page for both global and
per-device tunables.

END