linux-master/fs/select.c

509 		unsigned long *rinp, *routp, *rexp, *inp, *outp, *exp;
512 		inp = fds->in; outp = fds->out; exp = fds->ex;
520 			in = *inp++; out = *outp++; ex = *exp++;
625 int core_sys_select(int n, fd_set __user *inp, fd_set __user *outp,
673 	if ((ret = get_fd_set(n, inp, fds.in)) ||
692 	if (set_fd_set(n, inp, fds.res_in) ||
704 static int kern_select(int n, fd_set __user *inp, fd_set __user *outp,
722 	ret = core_sys_select(n, inp, outp, exp, to);
726 SYSCALL_DEFINE5(select, int, n, fd_set __user *, inp, fd_set __user *, outp,
729 	return kern_select(n, inp, outp, exp, tvp);
732 static long do_pselect(int n, fd_set __user *inp, fd_set __user *outp,
763 	ret = core_sys_select(n, inp, outp, exp, to);
795 SYSCALL_DEFINE6(pselect6, int, n, fd_set __user *, inp, fd_set __user *, outp,
804 	return do_pselect(n, inp, outp, exp, tsp, x.p, x.size, PT_TIMESPEC);
809 SYSCALL_DEFINE6(pselect6_time32, int, n, fd_set __user *, inp, fd_set __user *, outp,
818 	return do_pselect(n, inp, outp, exp, tsp, x.p, x.size, PT_OLD_TIMESPEC);
826 	fd_set __user *inp, *outp, *exp;
836 	return kern_select(a.n, a.inp, a.outp, a.exp, a.tvp);
1195 static int compat_core_sys_select(int n, compat_ulong_t __user *inp,
1236 	if ((ret = compat_get_fd_set(n, inp, fds.in)) ||
1255 	if (compat_set_fd_set(n, inp, fds.res_in) ||
1266 static int do_compat_select(int n, compat_ulong_t __user *inp,
1285 	ret = compat_core_sys_select(n, inp, outp, exp, to);
1289 COMPAT_SYSCALL_DEFINE5(select, int, n, compat_ulong_t __user *, inp,
1293 	return do_compat_select(n, inp, outp, exp, tvp);
1298 	compat_uptr_t inp;
1310 	return do_compat_select(a.n, compat_ptr(a.inp), compat_ptr(a.outp),
1314 static long do_compat_pselect(int n, compat_ulong_t __user *inp,
1345 	ret = compat_core_sys_select(n, inp, outp, exp, to);
1369 COMPAT_SYSCALL_DEFINE6(pselect6_time64, int, n, compat_ulong_t __user *, inp,
1378 	return do_compat_pselect(n, inp, outp, exp, tsp, compat_ptr(x.p),
1384 COMPAT_SYSCALL_DEFINE6(pselect6_time32, int, n, compat_ulong_t __user *, inp,
1393 	return do_compat_pselect(n, inp, outp, exp, tsp, compat_ptr(x.p),