From 45046892ef89c1e0caad66a03c8c1e14ad478d23 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 3 May 2012 09:03:01 +0000 Subject: x86: Use generic init_task Same code. Use the generic version. The special Makefile treatment is pointless anyway as init_task.o contains only data which is handled by the linker script. So no point on being treated like head text. Signed-off-by: Thomas Gleixner Link: http://lkml.kernel.org/r/20120503085035.739963562@linutronix.de Cc: x86@kernel.org --- arch/x86/kernel/process.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/x86/kernel/process.c') diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 1d92a5ab6e8b..8aa532fa015d 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -27,6 +27,15 @@ #include #include +/* + * per-CPU TSS segments. Threads are completely 'soft' on Linux, + * no more per-task TSS's. The TSS size is kept cacheline-aligned + * so they are allowed to end up in the .data..cacheline_aligned + * section. Since TSS's are completely CPU-local, we want them + * on exact cacheline boundaries, to eliminate cacheline ping-pong. + */ +DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; + #ifdef CONFIG_X86_64 static DEFINE_PER_CPU(unsigned char, is_idle); static ATOMIC_NOTIFIER_HEAD(idle_notifier); -- cgit v1.2.3