Messages in this thread | | | Date | Tue, 21 Feb 2006 08:38:04 -0800 | From | "Ulrich Drepper" <> | Subject | Re: [patch 5/6] lightweight robust futexes: i386 |
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On 2/21/06, Chuck Ebbert <76306.1226@compuserve.com> wrote: > > + : "=a" (oldval), "=m" (*uaddr) > ^^^^ > Should be "+m" because it's both read and written.
No, this is why there is the "0" input parameter.
\> > + : "memory" > ^^^^^^^^ > Is this necessary? Every possible memory location that could be > affected has been listed in the operands if the above change is made.
This makes the asm a barrier for the compiler. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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