Subject: [PATCH v3] xen block backend.
Date: Wednesday 20th April 2011 21:05:42 UTC (over 6 years ago)
The following patch implements the Xen block backend driver for upstream Linux. This is the host side counterpart to the frontend driver in drivers/block/xen-blkfront.c. The PV protocol is also implemented by frontend drivers in other OSes too, such as the BSDs and even Windows. This driver has a long history as an out of tree driver but I am submitting it here as a single monolithic patch to aid review. Once it has been reviewed and is considered suitable for merging can we perhaps consider merging the equivalent git branch which maintains much of history? The patch is based on the driver from the xen.git pvops kernel tree but has been put through the checkpatch.pl wringer plus several manual cleanup passes. It has also been moved from drivers/xen/blkback to drivers/block/xen-blback. The git tree of the broken out driver is available at: git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git devel/xen-blkback-v3 Note that this driver depends on couple of fixes to the Xen backend subsystem. Those are available in devel/backend.base.v3 branch and are intended for the 2.6.40 merge window. drivers/block/Kconfig | 8 + drivers/block/Makefile | 1 + drivers/block/xen-blkback/Makefile | 3 + drivers/block/xen-blkback/blkback.c | 828 +++++++++++++++++++++++++++++++++++ drivers/block/xen-blkback/common.h | 128 ++++++ drivers/block/xen-blkback/xenbus.c | 764 ++++++++++++++++++++++++++++++++ include/xen/blkif.h | 122 +++++ 7 files changed, 1854 insertions(+), 0 deletions(-)