[Xen-devel] [PATCH 0/6] Use system blktap

[George Dunlap <george.dunlap@xxxxxxxxxxxxx>]

Switch to using a blktap provided by the system, rather than building
it in-tree.

Do this by adding a block-tap script which calls the tap-ctl binary,
rather than linking against a library.

This requires the use of an externally-built tap-ctl binary, which an
be built from the master branch of the XenServer blktap tree at
https://github.com/xapi-project/blktap.git

The first two patches and the final patch are general libxl disk
handling improvements which can be applied independently of the core.

The third patch (tools: Add a block-tap script for setting up tapdisks
via tap-ctl) can also be checked in independently from the fourth and
fifth, as it allows someone to disable blktap support in configure but
still use externally-built tap-ctl binaries (albeit with a different
disk string).

The fifth patch is a straight rm -rf of toosl/blktap2.  Rather than
spam everyone's mailboxes I've clipped the message here, and provided
a tree which can be pulled from:

git://xenbits.xen.org/people/gdunlap/xen.git out/blktap-system/v1

This series also exposes blktap to a bug that prevents HVM guests from
using disks created with block scripts.  This should be a blocker for
the 4.6 release, so I think we should consider checking this series in
as is, assuming that bug will be addressed before the release.

George Dunlap (6): 
  libxl: Make local_initiate_attach more rational
  libxl: Remove linux udev rules
  tools: Add a block-tap script for setting up tapdisks via tap-ctl
  libxl: Use the block-tap script for LIBXL_DISK_BACKEND_TAP
  tools: Remove in-tree blktap2
  libxl: Add more logging to hotplug script path

 tools/Makefile                               |    1 -
 [tools/blktap2/* removal trimmed]
 tools/config.h.in                            |    3 -
 tools/configure                              |   29 +-
 tools/configure.ac                           |   13 +-
 tools/examples/README                        |    1 -
 tools/hotplug/Linux/Makefile                 |   15 +-
 tools/hotplug/Linux/block-tap                |  123 +
 tools/hotplug/Linux/xen-backend.rules.in     |   13 -
 tools/hotplug/Linux/xen-hotplug-common.sh.in |    7 -
 tools/libxl/Makefile                         |    5 -
 tools/libxl/libxl.c                          |  139 +-
 tools/libxl/libxl_blktap2.c                  |   93 -
 tools/libxl/libxl_create.c                   |   27 -
 tools/libxl/libxl_device.c                   |   34 +-
 tools/libxl/libxl_dm.c                       |    5 +-
 tools/libxl/libxl_internal.c                 |   19 -
 tools/libxl/libxl_internal.h                 |   27 -
 tools/libxl/libxl_linux.c                    |   12 +-
 tools/libxl/libxl_netbsd.c                   |    7 -
 tools/libxl/libxl_noblktap2.c                |   42 -
 146 files changed, 194 insertions(+), 40550 deletions(-)
 [delete mode 100644 tools/blktap2/* trimmed]

-- 
CC: Ian Campbell <ian.campbell@xxxxxxxxxx>
CC: Ian Jackson <ian.jackson@xxxxxxxxxx>
CC: Wei Liu <wei.liu2@xxxxxxxxxx>
CC: Roger Pau Monne <roger.pau@xxxxxxxxxx>
CC: Felipe Franciosi <felipe.franciosi@xxxxxxxxxx>
CC: Dave Scott <Dave.Scott@xxxxxxxxxxxxx>
CC: Jonathan Ludlam <Jonathan.Ludlam@xxxxxxxxxxxxx>

1.9.1


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel