On Feb 16, 2008 10:22 PM, Yinghai Lu <[EMAIL PROTECTED]> wrote: > On Feb 15, 2008 12:16 PM, Ingo Molnar <[EMAIL PROTECTED]> wrote: > > > > * [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > > include/asm-generic/vmlinux.lds.h | 2 + > > > include/linux/percpu.h | 9 ++++- > > > > couldnt these two generic bits be done separately (perhaps a preparatory > > but otherwise NOP patch pushed upstream straight away) to make > > subsequent patches only touch x86 architecture files? > > this patch need to apply to mainline asap. > > or you need revert to the patch about include/asm-x86/percpu.h > > +#ifdef CONFIG_X86_64 > +#include <linux/compiler.h> > + > +/* Same as asm-generic/percpu.h, except that we store the per cpu offset > + in the PDA. Longer term the PDA and every per cpu variable > + should be just put into a single section and referenced directly > + from %gs */ > + > +#ifdef CONFIG_SMP > +#include <asm/pda.h> > + > +#define __per_cpu_offset(cpu) (cpu_pda(cpu)->data_offset) > +#define __my_cpu_offset read_pda(data_offset) > + > +#define per_cpu_offset(x) (__per_cpu_offset(x)) > + > #endif > +#include <asm-generic/percpu.h> > + > +DECLARE_PER_CPU(struct x8664_pda, pda); > + > +#else /* CONFIG_X86_64 */ > > because current tree > in setup_per_cpu_areas will have > cpu_pda(i)->data_offset = ptr - __per_cpu_start; > > but at that time all APs will use cpu_pda for boot cpu...,and APs will > get their pda in do_boot_cpu()
sorry, boot_cpu_pda is array... so that is safe. YH -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
