Correct robust mutex / PI futex kernel assumptions (bug 9894)
David Miller
davem@davemloft.net
Tue Mar 25 23:06:00 GMT 2014
From: "Joseph S. Myers" <joseph@codesourcery.com>
Date: Tue, 25 Mar 2014 22:55:03 +0000
> On Tue, 25 Mar 2014, David Miller wrote:
>
>> From: "Joseph S. Myers" <joseph@codesourcery.com>
>> Date: Tue, 25 Mar 2014 15:35:00 +0000
>>
>> > In that case, I'd like to propose the SPARC changes in the patch as-is
>> > (i.e. not assuming these features for 32-bit SPARC).
>>
>> This is a very serious regression you are adding to the tree.
>
> It's a few conditional branches (that are already present in the default
> --enable-kernel=2.6.16 configuration) in order to avoid another regression
> (namely, the change to 2.6.32 default causing features to be assumed by
> default when they aren't present). But if you'd prefer the latter, I can
> drop the SPARC parts of this patch and bug 9894 can be left open for
> 32-bit SPARC after the default version changes.
Actually, it turns out you can simply test for the CPP macro __sparc_v9__
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