Re: [PATCH] simplify update_times (avoid jiffies/jiffies_64aliasing problem)

[Andrew Morton]

Paul Mackerras <paulus@xxxxxxxxx> wrote:
>
> Andi Kleen writes:
> 
> > Also I assume Atsushi-san did the patch because he saw a real problem?
> 
> Yes, one which I also saw on PPC.  The compiler (gcc-4) emits loads
> for jiffies, jiffies64 and wall_jiffies before storing the incremented
> jiffies64 value back.
> 

What was the effect of that?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/