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SubjectRe: [PATCH] __cacheline_aligned_in_smp?
   From: Rusty Russell <>
Date: Mon, 13 Jan 2003 18:24:40 +1100

Dave: Anton suggested you might have a justification for
__cacheline_aligned doing something on UP?

I think I'd prefer __cacheline_aligned to be the same as
__cacheline_aligned_in_smp, and have a new __cacheline_aligned_always
for those who REALLY want it (if any).

I think things like oprofile_buffer really want it always.

-struct tcp_hashinfo __cacheline_aligned tcp_hashinfo = {
+struct tcp_hashinfo __cacheline_aligned_in_smp tcp_hashinfo = {

This definitely too.

All of the submembers are placed at cacheline boundaries, which
helps even on UP. If I meant cacheline aligned on SMP I would
have used the corresponding macro :)
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