Function io_uring_prep_remove_buffers 

pub unsafe fn io_uring_prep_remove_buffers(
    sqe: *mut io_uring_sqe,
    nr: c_int,
    bgid: c_int,
)

Prepare a remove buffers request

DESCRIPTION

The io_uring_prep_remove_buffers function prepares a request for removing previously supplied buffers. The submission queue entry sqe is setup to remove nr number of buffers from the buffer group ID indicated by bgid.

RETURN VALUE

None

ERRORS

These are the errors that are reported in the CQE res field. On success, res will contain the number of successfully removed buffers. On error, the following errors can occur.

-ENOMEM
The kernel was unable to allocate memory for the request.

-EINVAL
One of the fields set in the SQE was invalid.

-ENOENT
No buffers exist at the specified bgid buffer group ID.

SEE ALSO

io_uring_get_sqe, io_uring_submit, io_uring_register, io_uring_prep_provide_buffers