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[PATCH] x86_64: Fixup read_mostly section on internode cache line size for vSMP 

Fixup the read mostly section to start at internode cacheline boundary.

Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ravikiran G Thirumalai 2006-04-07 19:50:09 +02:00 committed by Linus Torvalds
parent 3d34ee6891
commit e405d06729
2 changed files with 6 additions and 1 deletions
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5
arch/x86_64/Kconfig
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@ -136,6 +136,11 @@ config X86_L1_CACHE_SHIFT
default "7" if GENERIC_CPU || MPSC
default "6" if MK8
config X86_INTERNODE_CACHE_BYTES
int
default "4096" if X86_VSMP
default X86_L1_CACHE_BYTES if !X86_VSMP
config X86_TSC
bool
default y

2
arch/x86_64/kernel/vmlinux.lds.S
View File

@ -65,7 +65,7 @@ SECTIONS
.data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
*(.data.cacheline_aligned)
}
. = ALIGN(CONFIG_X86_L1_CACHE_BYTES);
. = ALIGN(CONFIG_X86_INTERNODE_CACHE_BYTES);
.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
*(.data.read_mostly)
}