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

[Jan Kiszka <jan.kiszka@siemens.com>]

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.

Jan

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