Messages in this thread | | | Date | Sat, 4 Mar 2006 22:42:07 +1100 | From | Paul Mackerras <> | Subject | Re: [PATCH] simplify update_times (avoid jiffies/jiffies_64 aliasing problem) |
| |
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.
Paul. - 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/
| |