linux/arch/x86/entry/vdso/vgetcpu.c

23 lines
496 B
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2006 Andi Kleen, SUSE Labs.
*
* 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)
{
vdso_read_cpunode(cpu, node);
return 0;
}
long getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
__attribute__((weak, alias("__vdso_getcpu")));