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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON |
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io_uring_free_buf_ring(3) liburing Manual io_uring_free_buf_ring(3)
io_uring_free_buf_ring - register and free a buffer ring for
provided buffers
#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.
On success io_uring_free_buf_ring(3) returns a pointer to the
buffe ring. On failure it returns -errno.
io_uring_setup_buf_ring(3)
This page is part of the liburing (A library for io_uring)
project. Information about the project can be found at
⟨https://github.com/axboe/liburing⟩. If you have a bug report for
this manual page, send it to io-uring@vger.kernel.org. This page
was obtained from the project's upstream Git repository
⟨https://github.com/axboe/liburing⟩ on 2023-12-22. (At that
time, the date of the most recent commit that was found in the
repository was 2023-12-19.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
liburing-2.4 Mar 07, 2023 io_uring_free_buf_ring(3)
Pages that refer to this page: io_uring_free_buf_ring(3), io_uring_setup_buf_ring(3)
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HTML rendering created 2023-12-22 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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