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


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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