sem_trywait changes broke sparc

[David Miller]

From: "Carlos O'Donell" <carlos@redhat.com>
Date: Mon, 26 Jan 2015 23:33:37 -0500

> On 01/26/2015 06:08 PM, David Miller wrote:
>> From: Torvald Riegel <triegel@redhat.com>
>> Date: Mon, 26 Jan 2015 13:20:12 +0100
>> 
>>> Regarding your statement that this was committed late: This patch was
>>> first posted on Dec 5.  While I didn't CC you explicitly (which I should
>>> have done I guess), I pointed out the sparc issue in the email:
>> 
>> During %90 of this time, the tree didn't even build for sparc.  It
>> finally was usable for a brief day or two until this change was
>> installed.  I didn't work on it, nor look into it, because it was
>> simply not possible to test or work on anything during this time.
>> 
>> And now I'm behind the eight ball again, because of changes installed
>> by other people.  Something has to break this cycle in order for me to
>> be able to do useful work.
> 
> That's my job (release manager for 2.21).
> 
> I'm breaking the cycle by preventing more things going in.
> 
> I'm also here to help and so is Torvald.
> 
> Ask and we can help.

The sparc semaphore issue should be resolved now.