Re: [Xen-devel] [PATCH 00/17] blktap2 related bugfix patches

[M A Young <m.a.young@xxxxxxxxxxxx>]

On Tue, 21 Oct 2014, George Dunlap wrote:

> On Tue, Oct 21, 2014 at 3:56 AM, Wen Congyang <wency@xxxxxxxxxxxxxx> wrote:
>
> > > Congyang, were you aware that XenServer has a fork of blktap is
> > > actually still under active development and maintainership outside of
> > > the main Xen tree?
> > >
> > > git://github.com/xen-org/blktap.git
> > >
> > > Both CentOS and Fedora are actually using snapshots of the "blktap2"
> > > branch in that tree for their Xen RPMs.  (I'm sure CentOS is, I
> > > believe Fedora is.)  It's not unlikely that the bugs you're fixing
> > > here have already been fixed in the XenServer fork.
> > How to build upstream xen with this blktap2? Copy the codes to overwrite
> > blktap2 in xen.git?
> Well what CentOS does at the moment is rm -rf tools/blktap2, then copy
> the above repo into tools/blktap2.  It requires a couple of patches to
> make things build / work (attached).
>
> CentOS is using a snapshot from 2012 -- I haven't tried a more recent
> version; but I *think* Fedora may be using a more recent one.  I think
> Bob Ball might know more about the best way to link in this branch.
Those patches need a slight modification if you are building against (what 
I think is) the latest release at
https://github.com/xapi-project/blktap/releases/tag/0.9.2
because in the libxl patch they have added an extra field (timeout) to the 
tap_ctl_create function. You also lose a few qcow utilities when compared 
to the blktap2 in the xen source.
        Michael Young

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