893 static int s390_regs_get(struct task_struct *target,  in s390_regs_get()  argument
898 	if (target == current)  in s390_regs_get()
899 		save_access_regs(target->thread.acrs);  in s390_regs_get()
904 			*k++ = __peek_user(target, pos);  in s390_regs_get()
911 			if (__put_user(__peek_user(target, pos), u++))  in s390_regs_get()
920 static int s390_regs_set(struct task_struct *target,  in s390_regs_set()  argument
927 	if (target == current)  in s390_regs_set()
928 		save_access_regs(target->thread.acrs);  in s390_regs_set()
933 			rc = __poke_user(target, pos, *k++);  in s390_regs_set()
944 			rc = __poke_user(target, pos, word);  in s390_regs_set()
950 	if (rc == 0 && target == current)  in s390_regs_set()
951 		restore_access_regs(target->thread.acrs);  in s390_regs_set()
956 static int s390_fpregs_get(struct task_struct *target,  in s390_fpregs_get()  argument
962 	if (target == current)  in s390_fpregs_get()
965 	fp_regs.fpc = target->thread.fpu.fpc;  in s390_fpregs_get()
966 	fpregs_store(&fp_regs, &target->thread.fpu);  in s390_fpregs_get()
972 static int s390_fpregs_set(struct task_struct *target,  in s390_fpregs_set()  argument
980 	if (target == current)  in s390_fpregs_set()
984 		convert_vx_to_fp(fprs, target->thread.fpu.vxrs);  in s390_fpregs_set()
986 		memcpy(&fprs, target->thread.fpu.fprs, sizeof(fprs));  in s390_fpregs_set()
990 		u32 ufpc[2] = { target->thread.fpu.fpc, 0 };  in s390_fpregs_set()
997 		target->thread.fpu.fpc = ufpc[0];  in s390_fpregs_set()
1007 		convert_fp_to_vx(target->thread.fpu.vxrs, fprs);  in s390_fpregs_set()
1009 		memcpy(target->thread.fpu.fprs, &fprs, sizeof(fprs));  in s390_fpregs_set()
1014 static int s390_last_break_get(struct task_struct *target,  in s390_last_break_get()  argument
1022 			*k = target->thread.last_break;  in s390_last_break_get()
1025 			if (__put_user(target->thread.last_break, u))  in s390_last_break_get()
1032 static int s390_last_break_set(struct task_struct *target,  in s390_last_break_set()  argument
1040 static int s390_tdb_get(struct task_struct *target,  in s390_tdb_get()  argument
1045 	struct pt_regs *regs = task_pt_regs(target);  in s390_tdb_get()
1050 	data = target->thread.trap_tdb;  in s390_tdb_get()
1054 static int s390_tdb_set(struct task_struct *target,  in s390_tdb_set()  argument
1062 static int s390_vxrs_low_get(struct task_struct *target,  in s390_vxrs_low_get()  argument
1072 	if (target == current)  in s390_vxrs_low_get()
1075 		vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);  in s390_vxrs_low_get()
1079 static int s390_vxrs_low_set(struct task_struct *target,  in s390_vxrs_low_set()  argument
1089 	if (target == current)  in s390_vxrs_low_set()
1093 		vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);  in s390_vxrs_low_set()
1098 			*((__u64 *)(target->thread.fpu.vxrs + i) + 1) = vxrs[i];  in s390_vxrs_low_set()
1103 static int s390_vxrs_high_get(struct task_struct *target,  in s390_vxrs_high_get()  argument
1112 	if (target == current)  in s390_vxrs_high_get()
1114 	memcpy(vxrs, target->thread.fpu.vxrs + __NUM_VXRS_LOW, sizeof(vxrs));  in s390_vxrs_high_get()
1119 static int s390_vxrs_high_set(struct task_struct *target,  in s390_vxrs_high_set()  argument
1128 	if (target == current)  in s390_vxrs_high_set()
1132 				target->thread.fpu.vxrs + __NUM_VXRS_LOW, 0, -1);  in s390_vxrs_high_set()
1136 static int s390_system_call_get(struct task_struct *target,  in s390_system_call_get()  argument
1141 	unsigned int *data = &target->thread.system_call;  in s390_system_call_get()
1146 static int s390_system_call_set(struct task_struct *target,  in s390_system_call_set()  argument
1151 	unsigned int *data = &target->thread.system_call;  in s390_system_call_set()
1156 static int s390_gs_cb_get(struct task_struct *target,  in s390_gs_cb_get()  argument
1161 	struct gs_cb *data = target->thread.gs_cb;  in s390_gs_cb_get()
1167 	if (target == current)  in s390_gs_cb_get()
1173 static int s390_gs_cb_set(struct task_struct *target,  in s390_gs_cb_set()  argument
1183 	if (!target->thread.gs_cb) {  in s390_gs_cb_set()
1188 	if (!target->thread.gs_cb)  in s390_gs_cb_set()
1190 	else if (target == current)  in s390_gs_cb_set()
1193 		gs_cb = *target->thread.gs_cb;  in s390_gs_cb_set()
1201 	if (!target->thread.gs_cb)  in s390_gs_cb_set()
1202 		target->thread.gs_cb = data;  in s390_gs_cb_set()
1203 	*target->thread.gs_cb = gs_cb;  in s390_gs_cb_set()
1204 	if (target == current) {  in s390_gs_cb_set()
1206 		restore_gs_cb(target->thread.gs_cb);  in s390_gs_cb_set()
1212 static int s390_gs_bc_get(struct task_struct *target,  in s390_gs_bc_get()  argument
1217 	struct gs_cb *data = target->thread.gs_bc_cb;  in s390_gs_bc_get()
1227 static int s390_gs_bc_set(struct task_struct *target,  in s390_gs_bc_set()  argument
1232 	struct gs_cb *data = target->thread.gs_bc_cb;  in s390_gs_bc_set()
1240 		target->thread.gs_bc_cb = data;  in s390_gs_bc_set()
1273 static int s390_runtime_instr_get(struct task_struct *target,  in s390_runtime_instr_get()  argument
1278 	struct runtime_instr_cb *data = target->thread.ri_cb;  in s390_runtime_instr_get()
1289 static int s390_runtime_instr_set(struct task_struct *target,  in s390_runtime_instr_set()  argument
1300 	if (!target->thread.ri_cb) {  in s390_runtime_instr_set()
1306 	if (target->thread.ri_cb) {  in s390_runtime_instr_set()
1307 		if (target == current)  in s390_runtime_instr_set()
1310 			ri_cb = *target->thread.ri_cb;  in s390_runtime_instr_set()
1326 	if (!target->thread.ri_cb)  in s390_runtime_instr_set()
1327 		target->thread.ri_cb = data;  in s390_runtime_instr_set()
1328 	*target->thread.ri_cb = ri_cb;  in s390_runtime_instr_set()
1329 	if (target == current)  in s390_runtime_instr_set()
1330 		load_runtime_instr_cb(target->thread.ri_cb);  in s390_runtime_instr_set()
1427 static int s390_compat_regs_get(struct task_struct *target,  in s390_compat_regs_get()  argument
1432 	if (target == current)  in s390_compat_regs_get()
1433 		save_access_regs(target->thread.acrs);  in s390_compat_regs_get()
1438 			*k++ = __peek_user_compat(target, pos);  in s390_compat_regs_get()
1445 			if (__put_user(__peek_user_compat(target, pos), u++))  in s390_compat_regs_get()
1454 static int s390_compat_regs_set(struct task_struct *target,  in s390_compat_regs_set()  argument
1461 	if (target == current)  in s390_compat_regs_set()
1462 		save_access_regs(target->thread.acrs);  in s390_compat_regs_set()
1467 			rc = __poke_user_compat(target, pos, *k++);  in s390_compat_regs_set()
1478 			rc = __poke_user_compat(target, pos, word);  in s390_compat_regs_set()
1484 	if (rc == 0 && target == current)  in s390_compat_regs_set()
1485 		restore_access_regs(target->thread.acrs);  in s390_compat_regs_set()
1490 static int s390_compat_regs_high_get(struct task_struct *target,  in s390_compat_regs_high_get()  argument
1498 		&task_pt_regs(target)->gprs[pos / sizeof(compat_ulong_t)];  in s390_compat_regs_high_get()
1518 static int s390_compat_regs_high_set(struct task_struct *target,  in s390_compat_regs_high_set()  argument
1527 		&task_pt_regs(target)->gprs[pos / sizeof(compat_ulong_t)];  in s390_compat_regs_high_set()
1551 static int s390_compat_last_break_get(struct task_struct *target,  in s390_compat_last_break_get()  argument
1559 		last_break = target->thread.last_break;  in s390_compat_last_break_get()
1572 static int s390_compat_last_break_set(struct task_struct *target,  in s390_compat_last_break_set()  argument