NAME

       io_uring_prep_madvise - prepare a madvise request

SYNOPSIS

       #include <sys/mman.h>
       #include <liburing.h>

       void io_uring_prep_madvise(struct io_uring_sqe *sqe,
                                  void *addr,
                                  off_t len,
                                  int advice);

DESCRIPTION

       The  io_uring_prep_madvise(3)  function  prepares  an  madvise request. The submission queue entry sqe is
       setup to start an madvise operation at the virtual address of addr and of len length in bytes, giving  it
       the advise located in advice.

       This function prepares an async madvise(2) request. See that man page for details.

RETURN VALUE

       None

ERRORS

       The  CQE  res  field  will  contain  the result of the operation. See the related man page for details on
       possible values. Note that where synchronous system calls will return -1 on failure and set errno to  the
       actual  error value, io_uring never uses errno.  Instead it returns the negated errno directly in the CQE
       res field.

SEE ALSO

       io_uring_get_sqe(3), io_uring_submit(3), io_uring_register(2), madvise(2)