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authorAndi Kleen <ak@suse.de>2006-02-07 00:18:55 +0100
committerChris Wright <chrisw@sous-sol.org>2006-02-09 23:20:13 -0800
commit61572d33e60ea237051a99f8effafadfdd91ac4f (patch)
treeb84fbbc38cc88d42226ac81c803d798a739ed5a1
parent575eee6f6d5985975e2402c29fdf7410b9313d46 (diff)
downloadlinux-linaro-stable-61572d33e60ea237051a99f8effafadfdd91ac4f.tar.gz
[PATCH] x86_64: Let impossible CPUs point to reference per cpu data
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: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--arch/x86_64/kernel/vmlinux.lds.S10
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S
index 58b19215b4b3..6535b363985b 100644
--- a/arch/x86_64/kernel/vmlinux.lds.S
+++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -170,13 +170,15 @@ SECTIONS
. = ALIGN(4096);
__initramfs_start = .;
.init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) }
- __initramfs_end = .;
- . = ALIGN(32);
+ __initramfs_end = .;
+ /* temporary here to work around NR_CPUS. If you see this comment in 2.6.17+
+ complain */
+ . = ALIGN(4096);
+ __init_end = .;
+ . = ALIGN(128);
__per_cpu_start = .;
.data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) }
__per_cpu_end = .;
- . = ALIGN(4096);
- __init_end = .;
. = ALIGN(4096);
__nosave_begin = .;