1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __ASM_SH_FUTEX_IRQ_H 3*4882a593Smuzhiyun #define __ASM_SH_FUTEX_IRQ_H 4*4882a593Smuzhiyun atomic_futex_op_cmpxchg_inatomic(u32 * uval,u32 __user * uaddr,u32 oldval,u32 newval)5*4882a593Smuzhiyunstatic inline int atomic_futex_op_cmpxchg_inatomic(u32 *uval, 6*4882a593Smuzhiyun u32 __user *uaddr, 7*4882a593Smuzhiyun u32 oldval, u32 newval) 8*4882a593Smuzhiyun { 9*4882a593Smuzhiyun unsigned long flags; 10*4882a593Smuzhiyun int ret; 11*4882a593Smuzhiyun u32 prev = 0; 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun local_irq_save(flags); 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun ret = get_user(prev, uaddr); 16*4882a593Smuzhiyun if (!ret && oldval == prev) 17*4882a593Smuzhiyun ret = put_user(newval, uaddr); 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun local_irq_restore(flags); 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun *uval = prev; 22*4882a593Smuzhiyun return ret; 23*4882a593Smuzhiyun } 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun #endif /* __ASM_SH_FUTEX_IRQ_H */ 26