• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright 2006 Andi Kleen, SUSE Labs.
4  *
5  * Fast user context implementation of getcpu()
6  */
7 
8 #include <linux/kernel.h>
9 #include <linux/getcpu.h>
10 #include <linux/time.h>
11 #include <asm/vgtod.h>
12 
13 notrace long
__vdso_getcpu(unsigned * cpu,unsigned * node,struct getcpu_cache * unused)14 __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
15 {
16 	vdso_read_cpunode(cpu, node);
17 
18 	return 0;
19 }
20 
21 long getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
22 	__attribute__((weak, alias("__vdso_getcpu")));
23