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xen-devel
Re: [Xen-devel] Re: [5 Patches] Synchronize blktap with citrix blktap2.
The build system update I promised is here:
http://www.cs.ubc.ca/~dmeyer/blktap2/userspace_patches.tgz
This removes the blktap2's blktaplib.h from /usr/include so that code with
blktap dependencies doesn't get confused.
Other patches listed below remain unchanged:
http://www.cs.ubc.ca/~dmeyer/blktap2/kernel_patches.tgz
http://www.cs.ubc.ca/~dmeyer/blktap2/tools_ioemu_dir_use_blktap_old.patch
--Dutch
On Fri, 3 Apr 2009, Dutch Meyer wrote:
It seems that the "readonly" flag was removed...but I can't seem to find
much documentation, or examples on how this might be used, so I might be
way off base here
Internally, the flag changed to TD_OPEN_RDONLY, but that shouldn't have any
effect from a user perspective. Normal usage shouldn't be changed from the
original blktap, you should be able to boot tap disks just as before.
Internally, the other tap drivers have all been updated to take advantage of
the new (and simplified) API. If you take a look there you'll see the
updates.
The introduction of the new blktaplib.h does introduce a significant
number of new warnings to the qemu build though.
This is unexpected, but I see now how it could happen under certain
conditions. I will fix this today by NOT installing the "new" blktaplib.h
into /usr/include. This will ensure that anyone who has build anything with
#include <blktaplib.h> dependencies will continue to see the old version,
which should be appropriate until the old blktap is fully removed.
--Dutch
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