]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] x86_64: Let impossible CPUs point to reference per cpu data
authorAndi Kleen <ak@suse.de>
Fri, 3 Feb 2006 20:51:56 +0000 (21:51 +0100)
committerLinus Torvalds <torvalds@g5.osdl.org>
Sun, 5 Feb 2006 00:43:15 +0000 (16:43 -0800)
commit14c3f8558717adb192c364f58b0d63dfc850ecca
tree16e04e07d4212217e597d79432ad03c2b3856855
parent3777a95903953c55f2309a89679b73c19ae5535b
[PATCH] x86_64: Let impossible CPUs point to reference per cpu data

Hack for 2.6.16. In 2.6.17 all code that uses NR_CPUs should
be audited and changed to only touch possible CPUs.

Don't mark the reference per cpu data init data (so it stays
around after boot) and point all impossible CPUs to it. This way
they reference some valid - although shared memory. Usually
this is only initialization like INIT_LIST_HEADs and there
won't be races because these CPUs never run. Still somewhat hackish.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/x86_64/kernel/vmlinux.lds.S