.\" Copyright (C) 2024 Jens Axboe <axboe@kernel.dk>
.\"
.\" SPDX-License-Identifier: LGPL-2.0-or-later
.\"
.TH io_uring_free_reg_wait 3 "November 2, 2024" "liburing-2.9" "liburing Manual"
.SH NAME
io_uring_free_reg_wait \- Frees a previously registered wait region
.SH SYNOPSIS
.nf
.B #include <liburing.h>
.PP
.BI "void io_uring_free_reg_wait(struct io_uring *" ring ","
.BI "                            unsigned " nentries ");"
.PP
.fi
.SH DESCRIPTION
.PP
The
.BR io_uring_free_reg_wait (3)
function frees a wait region for the ring
.IR ring
of
.IR nentries
previously setup with
.BR io_uring_setup_reg_wait (3) .
As registered wait regions persist for the life time of the ring, on the
kernel side the wait regions still remain active, and may in fact still
be used by the application for wait operations. They may just no longer
be modified by the application.

Available since kernel 6.13.

.SH SEE ALSO
.BR io_uring_submit_and_wait_reg (3),
.BR io_uring_free_reg_wait (3)