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[PATCH] x86: Allow percpu variables to be page-aligned

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Let's allow page-alignment in general for per-cpu data (wanted by Xen, and
Ingo suggested KVM as well).

Because larger alignments can use more room, we increase the max per-cpu
memory to 64k rather than 32k: it's getting a little tight.

Signed-off-by: Rusty Russell <[email protected]>
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Andi Kleen <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Cc: Andi Kleen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
This commit is contained in:
Jeremy Fitzhardinge 2007-05-02 19:27:12 +02:00 • committed by Andi Kleen
commit b6e3590f81
21 changed files with 29 additions and 35 deletions
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2
arch/alpha/kernel/vmlinux.lds.S
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@ -69,7 +69,7 @@ SECTIONS
. = ALIGN(8);
SECURITY_INIT
. = ALIGN(64);
. = ALIGN(8192);
__per_cpu_start = .;
.data.percpu : { *(.data.percpu) }
__per_cpu_end = .;