Re: [PATCH] get rid of "+m" constraint in i386 rwsems

[Linus Torvalds]

On Thu, 6 May 2004, David Howells wrote:
> 
> Here's a patch to remove the usage of a "+m" constraint in the i386 optimised
> rwsem implementation.

I think this is wrong, and I thought the gcc people (well, rth seemed to
imply it was a no-brainer) already agreed to support "+m" since:

 - it has long been documented
 - it should be trivial to expand _internally_ in gcc if some 
   implementation thing makes gcc prefer the "=m" / "m" combination.

Richard? 

If it's just a warning in 3.4, and later gcc's are supposed to make it ok 
again, then..

		Linus
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