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SubjectRe: [PATCH V6 01/18] x86: Make page cache mode a real type
On 01/22/2015 12:06 PM, Thomas Gleixner wrote:
> On Thu, 22 Jan 2015, Juergen Gross wrote:
>> On 01/22/2015 08:11 AM, Steven Noonan wrote:
>>> I notice these two symbols are exported GPL-only. This breaks builds
>>> of several out-of-tree non-GPL modules such as the NVIDIA driver, and
>>> VMware modules, etc. What is the appropriate code path for proprietary
>>> modules to use when setting page cache mode flags? Alternatively, is
>>> it possible for these EXPORT_SYMBOL_GPLs to be changed to
>>> EXPORT_SYMBOL?
>>
>> I don't mind you sending a patch to change this. I won't object such a
>> patch. OTOH this is more kind of a political question and I don't want
>> to spend my time on arguing.
>
> It's rather simple. If the new cache stuff replaces code which was
> available under EXPORT_SYMBOL, we either need a compat export or make
> the new exports non GPL.
>
> Not that I like it, but that has been the policy so far. We only break
> out of tree stuff if the export is broken or security relevant, like
> we did with the init_mm export a few years ago.

Okay, in this case I'll write patch.

Thanks for clarifying this.


Juergen



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