Messages in this thread | | | Date | Sun, 5 Mar 2006 10:13:56 +1100 | From | Paul Mackerras <> | Subject | Re: [PATCH] simplify update_times (avoid jiffies/jiffies_64 aliasing problem) |
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Andrew Morton writes:
> Andi Kleen <ak@muc.de> wrote: > > Yes maybe it would be better to just use #define there. > > jiffies_64 always was a bit too clever. > > hm. It's actually rather hard.
I think the thing that makes most sense is:
#define jiffies ((unsigned long) jiffies_64)
and fix the few drivers that use `jiffies' as a local variable. No-one should be trying to write to jiffies, and the compiler will do the right thing for reads of jiffies on 32-bit platforms (it does on ppc32 at least).
Paul.
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