Re: [patch] futex-2.5.42-A2

[Ingo Molnar]

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.

	Ingo