Re: [PATCH] 2.5.1-pre5: per-cpu areas
David S. Miller (davem@redhat.com)
Thu, 06 Dec 2001 00:07:04 -0800 (PST)
From: Keith Owens <kaos@ocs.com.au>
Date: Thu, 06 Dec 2001 18:21:25 +1100
Did you look at PERCPU_ADDR in ia64? Much (all?) of the per cpu data
is in struct cpuinfo_ia64 which is at the same virtual address on all
cpus but with different physical addresses on each cpu. Let the mmu do
the work.
What an absolutely aweful waste of a TLB entry.
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