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xen-changelog
[Xen-changelog] [xen-unstable] linux/x86_64 2.6.18: remove orig_ist
# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1173107068 0
# Node ID f71157f1f1a084397a7cca9953914c8059a70677
# Parent 7a39b1e22373a6c6ca10db428458cbd38b0b8bb7
linux/x86_64 2.6.18: remove orig_ist
orig_ist is bound to presence of a TSS, hence is meaningless on Xen
kernels.
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
---
linux-2.6-xen-sparse/arch/x86_64/kernel/init_task.c | 2 +-
linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/processor.h | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
diff -r 7a39b1e22373 -r f71157f1f1a0
linux-2.6-xen-sparse/arch/x86_64/kernel/init_task.c
--- a/linux-2.6-xen-sparse/arch/x86_64/kernel/init_task.c Mon Mar 05
14:39:03 2007 +0000
+++ b/linux-2.6-xen-sparse/arch/x86_64/kernel/init_task.c Mon Mar 05
15:04:28 2007 +0000
@@ -47,11 +47,11 @@ EXPORT_SYMBOL(init_task);
* on exact cacheline boundaries, to eliminate cacheline ping-pong.
*/
DEFINE_PER_CPU(struct tss_struct, init_tss)
____cacheline_internodealigned_in_smp = INIT_TSS;
-#endif
/* Copies of the original ist values from the tss are only accessed during
* debugging, no special alignment required.
*/
DEFINE_PER_CPU(struct orig_ist, orig_ist);
+#endif
#define ALIGN_TO_4K __attribute__((section(".data.init_task")))
diff -r 7a39b1e22373 -r f71157f1f1a0
linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/processor.h
--- a/linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/processor.h Mon Mar
05 14:39:03 2007 +0000
+++ b/linux-2.6-xen-sparse/include/asm-x86_64/mach-xen/asm/processor.h Mon Mar
05 15:04:28 2007 +0000
@@ -246,11 +246,13 @@ DECLARE_PER_CPU(struct tss_struct,init_t
extern struct cpuinfo_x86 boot_cpu_data;
+#ifndef CONFIG_X86_NO_TSS
/* Save the original ist values for checking stack pointers during debugging */
struct orig_ist {
unsigned long ist[7];
};
DECLARE_PER_CPU(struct orig_ist, orig_ist);
+#endif
#ifdef CONFIG_X86_VSMP
#define ARCH_MIN_TASKALIGN (1 << INTERNODE_CACHE_SHIFT)
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