SPDX-License-Identifier: LGPL-2.0-or-later
#include <liburing.h>"int io_uring_free_buf_ring(struct io_uring *" ring ", " struct io_uring_buf_ring *" br ", " unsigned int " nentries ", " int " bgid ");" "
The io_uring_free_buf_ring (3) function unregisters a previously registered shared buffer ring. The ring must have heen previously returned from io_uring_setup_buf_ring (3) . The ring argument must pointer to the ring for which the provided buffer ring is being registered, br must point to a buffer ring previously returned by io_uring_setup_buf_ring (3) , nentries is the number of entries requested in the buffer ring, and bgid is the buffer group ID that br was setup with. Under the covers, this function uses io_uring_unregister_buf_ring (3) to unregister the ring, and handles the freeing of the ring rather than letting the application open code it. Available since 5.19.