963 static int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds,  in do_sys_poll()  argument
974 	unsigned int todo = nfds;  in do_sys_poll()
977 	if (nfds > rlimit(RLIMIT_NOFILE))  in do_sys_poll()
980 	len = min_t(unsigned int, nfds, N_STACK_PPS);  in do_sys_poll()
987 		if (copy_from_user(walk->entries, ufds + nfds-todo,  in do_sys_poll()
1007 	if (!user_write_access_begin(ufds, nfds * sizeof(*ufds)))  in do_sys_poll()
1039 	int nfds = restart_block->poll.nfds;  in do_restart_poll()  local
1046 	ret = do_sys_poll(ufds, nfds, to);  in do_restart_poll()
1054 SYSCALL_DEFINE3(poll, struct pollfd __user *, ufds, unsigned int, nfds,  in SYSCALL_DEFINE3()  argument
1066 	ret = do_sys_poll(ufds, nfds, to);  in SYSCALL_DEFINE3()
1073 		restart_block->poll.nfds = nfds;  in SYSCALL_DEFINE3()
1086 SYSCALL_DEFINE5(ppoll, struct pollfd __user *, ufds, unsigned int, nfds,  in SYSCALL_DEFINE5()  argument
1106 	ret = do_sys_poll(ufds, nfds, to);  in SYSCALL_DEFINE5()
1112 SYSCALL_DEFINE5(ppoll_time32, struct pollfd __user *, ufds, unsigned int, nfds,  in SYSCALL_DEFINE5()  argument
1132 	ret = do_sys_poll(ufds, nfds, to);  in SYSCALL_DEFINE5()
1385 	unsigned int,  nfds, struct old_timespec32 __user *, tsp,  in COMPAT_SYSCALL_DEFINE5()  argument
1404 	ret = do_sys_poll(ufds, nfds, to);  in COMPAT_SYSCALL_DEFINE5()
1411 	unsigned int,  nfds, struct __kernel_timespec __user *, tsp,  in COMPAT_SYSCALL_DEFINE5()  argument
1430 	ret = do_sys_poll(ufds, nfds, to);  in COMPAT_SYSCALL_DEFINE5()