Re: [Qemu-devel] State of KVM bits in linux-headers

[Alexander Graf]

On 11.01.2012, at 20:46, Jan Kiszka wrote:

> On 2012-01-11 20:38, Anthony Liguori wrote:
>> On 01/11/2012 01:32 PM, Alexander Graf wrote:
>>> 
>>> On 11.01.2012, at 20:16, Jan Kiszka wrote:
>>> 
>>>> Hi,
>>>> 
>>>> I'm a bit unhappy about the current state of our supposed to be
>>>> automatically sync'ed linux-headers directory in qemu. It has been
>>>> updated several times against undefined kernel trees, means against
>>>> neither a released version nor kvm.git. Now, if I run an update against
>>>> kvm.git + some local change, I get a churn of removals. Same will happen
>>>> when that local change ever goes upstream before the other stuff got
>>>> finally committed.
>>> 
>>> Yes, call me even more unhappy about it :(.
>> 
>> May I suggest the following:
>> 
>> 1) Have the header syncing script take a commit hash that's stored in git.  
>> Make 
>> script ensure that this has is in Linus' tree.
>> 
>> 2) Maintain a patch on top of Linus' tree in qemu.git that the script would 
>> apply before actually syncing header files.
>> 
>> That let's us track how we're differing from upstream in a more reliable 
>> fashion.
> 
> That sounds fairly complicated for a simple problem: Do not merge ABI
> changes that aren't at least in kvm.git. There are also other reasons
> for this, beside making the sync harder.

Let's just try to get my patch queue into kvm.git asap and then never to push 
linux-header updates before they hit kvm.git again. That's easier than setting 
up any complicated processes or scripts.


Alex