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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
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")));
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