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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 <rusty@rustcorp.com.au>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Jeremy Fitzhardinge
2007-05-02 19:27:12 +02:00
committed by Andi Kleen
parent de90c5ce83
commit b6e3590f81
21 changed files with 29 additions and 35 deletions
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2
arch/sparc/kernel/vmlinux.lds.S
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@ -65,7 +65,7 @@ SECTIONS
__initramfs_end = .;
#endif
. = ALIGN(32);
. = ALIGN(4096);
__per_cpu_start = .;
.data.percpu : { *(.data.percpu) }
__per_cpu_end = .;