23 	struct task_struct *tsk = current;  in fpu_disabled()  local
40 	fpu_state_owner = tsk;  in fpu_disabled()
45 	if (is_using_fpu(tsk)) {  in fpu_disabled()
46 		fpu_restore(&tsk->thread.fpu_state);  in fpu_disabled()
49 		set_using_fpu(tsk);  in fpu_disabled()
59 		info.si_addr = (void *) tsk->thread.uregs->pc;  in fpu_disabled()
62 		force_sig_info(SIGFPE, &info, tsk);  in fpu_disabled()
74 	struct task_struct *tsk = fpu_state_owner;  in fpu_exception()  local
82 	if (!tsk)  in fpu_exception()
89 	info.si_addr = (void *) tsk->thread.uregs->pc;  in fpu_exception()
125 	force_sig_info(SIGFPE, &info, tsk);  in fpu_exception()
134 	struct task_struct *tsk = current;  in fpu_setup_sigcontext()  local
136 	if (!is_using_fpu(tsk))  in fpu_setup_sigcontext()
145 	if (fpu_state_owner == tsk) {  in fpu_setup_sigcontext()
146 		fpu_save(&tsk->thread.fpu_state);  in fpu_setup_sigcontext()
154 	clear_using_fpu(tsk);  in fpu_setup_sigcontext()
158 			 &tsk->thread.fpu_state,  in fpu_setup_sigcontext()
172 void fpu_kill_state(struct task_struct *tsk)  in fpu_kill_state()  argument
178 	if (fpu_state_owner == tsk) {  in fpu_kill_state()
186 	clear_using_fpu(tsk);  in fpu_kill_state()
194 	struct task_struct *tsk = current;  in fpu_restore_sigcontext()  local
198 	ret = copy_from_user(&tsk->thread.fpu_state,  in fpu_restore_sigcontext()
203 		set_using_fpu(tsk);  in fpu_restore_sigcontext()
213 	struct task_struct *tsk = current;  in dump_fpu()  local
216 	fpvalid = is_using_fpu(tsk);  in dump_fpu()
218 		unlazy_fpu(tsk);  in dump_fpu()
219 		memcpy(fpreg, &tsk->thread.fpu_state, sizeof(*fpreg));  in dump_fpu()