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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __ASM_SH_FUTEX_IRQ_H
3#define __ASM_SH_FUTEX_IRQ_H
4
5static inline int atomic_futex_op_cmpxchg_inatomic(u32 *uval,
6 u32 __user *uaddr,
7 u32 oldval, u32 newval)
8{
9 unsigned long flags;
10 int ret;
11 u32 prev = 0;
12
13 local_irq_save(flags);
14
15 ret = get_user(prev, uaddr);
16 if (!ret && oldval == prev)
17 ret = put_user(newval, uaddr);
18
19 local_irq_restore(flags);
20
21 *uval = prev;
22 return ret;
23}
24
25#endif /* __ASM_SH_FUTEX_IRQ_H */
26

Warning: This file is not a C or C++ file. It does not have highlighting.

source code of linux/arch/sh/include/asm/futex-irq.h