Re: [patch] futex-2.5.42-A2

From: Ingo Molnar (
Date: Wed Oct 16 2002 - 03:17:10 EST

On Wed, 16 Oct 2002, Rusty Russell wrote:

> If you do this, *please* add:
> /* Above check not sufficient if align of int < size. Break link. */
> if (__alignof__(int) < sizeof(int)) {
> extern void __error_small_int_align();
> __error_small_int_align();
> }

are you aware of any platform we care about that has a word alignment like
this? But in any case, this should not matter these days, all we need is a
guarantee that the word is accessed atomically by the kernel when it reads
it, pure int alignment should be enough for that.


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