On 09/08/2014 12:09 PM, James Bottomley wrote: > > Um, I think you need to re-read the thread; that's not what I said at > all. It's even written lower down: "PA can't do atomic bit sets (no > atomic RMW except the ldcw operation) it can do atomic writes to > fundamental sizes (byte, short, int, long) provided gcc emits the > correct primitive". The original question was whether atomicity > required native bus width access, which we currently assume, so there's > no extant problem. > The issue at hand was whether or not partially overlapped (but natually aligned) writes can pass each other. *This* is the aggressive relaxation to which I am referring. I would guess that that is a very unusual constraint. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
