876 static int s390_regs_get(struct task_struct *target,  in s390_regs_get()  argument
881 	if (target == current)  in s390_regs_get()
882 		save_access_regs(target->thread.acrs);  in s390_regs_get()
887 			*k++ = __peek_user(target, pos);  in s390_regs_get()
894 			if (__put_user(__peek_user(target, pos), u++))  in s390_regs_get()
903 static int s390_regs_set(struct task_struct *target,  in s390_regs_set()  argument
910 	if (target == current)  in s390_regs_set()
911 		save_access_regs(target->thread.acrs);  in s390_regs_set()
916 			rc = __poke_user(target, pos, *k++);  in s390_regs_set()
927 			rc = __poke_user(target, pos, word);  in s390_regs_set()
933 	if (rc == 0 && target == current)  in s390_regs_set()
934 		restore_access_regs(target->thread.acrs);  in s390_regs_set()
939 static int s390_fpregs_get(struct task_struct *target,  in s390_fpregs_get()  argument
945 	if (target == current)  in s390_fpregs_get()
948 	fp_regs.fpc = target->thread.fpu.fpc;  in s390_fpregs_get()
949 	fpregs_store(&fp_regs, &target->thread.fpu);  in s390_fpregs_get()
955 static int s390_fpregs_set(struct task_struct *target,  in s390_fpregs_set()  argument
963 	if (target == current)  in s390_fpregs_set()
968 		u32 ufpc[2] = { target->thread.fpu.fpc, 0 };  in s390_fpregs_set()
975 		target->thread.fpu.fpc = ufpc[0];  in s390_fpregs_set()
985 		convert_fp_to_vx(target->thread.fpu.vxrs, fprs);  in s390_fpregs_set()
987 		memcpy(target->thread.fpu.fprs, &fprs, sizeof(fprs));  in s390_fpregs_set()
992 static int s390_last_break_get(struct task_struct *target,  in s390_last_break_get()  argument
1000 			*k = task_thread_info(target)->last_break;  in s390_last_break_get()
1003 			if (__put_user(task_thread_info(target)->last_break, u))  in s390_last_break_get()
1010 static int s390_last_break_set(struct task_struct *target,  in s390_last_break_set()  argument
1018 static int s390_tdb_get(struct task_struct *target,  in s390_tdb_get()  argument
1023 	struct pt_regs *regs = task_pt_regs(target);  in s390_tdb_get()
1028 	data = target->thread.trap_tdb;  in s390_tdb_get()
1032 static int s390_tdb_set(struct task_struct *target,  in s390_tdb_set()  argument
1040 static int s390_vxrs_low_get(struct task_struct *target,  in s390_vxrs_low_get()  argument
1050 	if (target == current)  in s390_vxrs_low_get()
1053 		vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);  in s390_vxrs_low_get()
1057 static int s390_vxrs_low_set(struct task_struct *target,  in s390_vxrs_low_set()  argument
1067 	if (target == current)  in s390_vxrs_low_set()
1073 			*((__u64 *)(target->thread.fpu.vxrs + i) + 1) = vxrs[i];  in s390_vxrs_low_set()
1078 static int s390_vxrs_high_get(struct task_struct *target,  in s390_vxrs_high_get()  argument
1087 	if (target == current)  in s390_vxrs_high_get()
1089 	memcpy(vxrs, target->thread.fpu.vxrs + __NUM_VXRS_LOW, sizeof(vxrs));  in s390_vxrs_high_get()
1094 static int s390_vxrs_high_set(struct task_struct *target,  in s390_vxrs_high_set()  argument
1103 	if (target == current)  in s390_vxrs_high_set()
1107 				target->thread.fpu.vxrs + __NUM_VXRS_LOW, 0, -1);  in s390_vxrs_high_set()
1111 static int s390_system_call_get(struct task_struct *target,  in s390_system_call_get()  argument
1116 	unsigned int *data = &task_thread_info(target)->system_call;  in s390_system_call_get()
1121 static int s390_system_call_set(struct task_struct *target,  in s390_system_call_set()  argument
1126 	unsigned int *data = &task_thread_info(target)->system_call;  in s390_system_call_set()
1198 static int s390_compat_regs_get(struct task_struct *target,  in s390_compat_regs_get()  argument
1203 	if (target == current)  in s390_compat_regs_get()
1204 		save_access_regs(target->thread.acrs);  in s390_compat_regs_get()
1209 			*k++ = __peek_user_compat(target, pos);  in s390_compat_regs_get()
1216 			if (__put_user(__peek_user_compat(target, pos), u++))  in s390_compat_regs_get()
1225 static int s390_compat_regs_set(struct task_struct *target,  in s390_compat_regs_set()  argument
1232 	if (target == current)  in s390_compat_regs_set()
1233 		save_access_regs(target->thread.acrs);  in s390_compat_regs_set()
1238 			rc = __poke_user_compat(target, pos, *k++);  in s390_compat_regs_set()
1249 			rc = __poke_user_compat(target, pos, word);  in s390_compat_regs_set()
1255 	if (rc == 0 && target == current)  in s390_compat_regs_set()
1256 		restore_access_regs(target->thread.acrs);  in s390_compat_regs_set()
1261 static int s390_compat_regs_high_get(struct task_struct *target,  in s390_compat_regs_high_get()  argument
1269 		&task_pt_regs(target)->gprs[pos / sizeof(compat_ulong_t)];  in s390_compat_regs_high_get()
1289 static int s390_compat_regs_high_set(struct task_struct *target,  in s390_compat_regs_high_set()  argument
1298 		&task_pt_regs(target)->gprs[pos / sizeof(compat_ulong_t)];  in s390_compat_regs_high_set()
1322 static int s390_compat_last_break_get(struct task_struct *target,  in s390_compat_last_break_get()  argument
1330 		last_break = task_thread_info(target)->last_break;  in s390_compat_last_break_get()
1343 static int s390_compat_last_break_set(struct task_struct *target,  in s390_compat_last_break_set()  argument