Re: page fault scalability patch final : i386 tested, x86_64

David S. Miller
2004-08-27T23:43:06Z

On Sat, 28 Aug 2004 01:36:02 +0200
Andi Kleen <ak@suse.de> wrote:

> On some architectures it used to be 24bit only even, but I think that
> has been fixed.

It has, on sparc32 the hashed spinlock scheme is being used
so it's a full 32-bit counter now.

Well, it's not even 32-bits, it's actually 31-bits since the
value is declared as signed.

Only 64-bit platforms provide the atomic64_t implementation.
We'd need to deal with that before making your suggested
change.