/* * Copyright 2006 Andi Kleen, SUSE Labs. * Subject to the GNU Public License, v.2 * * Fast user context implementation of getcpu() */ #include <linux/kernel.h> #include <linux/getcpu.h> #include <linux/time.h> #include <asm/vgtod.h> notrace long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused) { unsigned int p; p = __getcpu(); if (cpu) *cpu = p & VGETCPU_CPU_MASK; if (node) *node = p >> 12; return 0; } long getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache) __attribute__((weak, alias("__vdso_getcpu"))); |