From: Ravikiran G Thirumalai Date: Fri, 7 Apr 2006 17:50:09 +0000 (+0200) Subject: [PATCH] x86_64: Fixup read_mostly section on internode cache line size for vSMP X-Git-Tag: v2.6.17-rc2~308 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e405d067298b2b960bf20318e91ed842157c65bc;p=linux-2.6 [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 Signed-off-by: Shai Fultheim Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 4310b4a311..7df2fe1844 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -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 diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S index 39ff0708f8..b81f473c4a 100644 --- a/arch/x86_64/kernel/vmlinux.lds.S +++ b/arch/x86_64/kernel/vmlinux.lds.S @@ -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) }