io_uring_prep_fadvise(3) — Linux manual page

io_uring_prep_fadvise(3)     liburing Manual    io_uring_prep_fadvise(3)

NAME         top

       io_uring_prep_fadvise - prepare a fadvise request

SYNOPSIS         top

       #include <fcntl.h>
       #include <liburing.h>

       void io_uring_prep_fadvise(struct io_uring_sqe *sqe,
                                  int fd,
                                  __u64 offset,
                                  off_t len,
                                  int advice);

DESCRIPTION         top

       The io_uring_prep_fadvise(3) function prepares an fadvise
       request. The submission queue entry sqe is setup to use the file
       descriptor pointed to by fd to start an fadvise operation at
       offset and of len length in bytes, giving it the advise located
       in advice.

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

RETURN VALUE         top

       None

ERRORS         top

       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         top

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

COLOPHON         top

       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 [email protected].  This page
       was obtained from the project's upstream Git repository
       ⟨https://github.com/axboe/liburing⟩ on 2024-06-14.  (At that
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liburing-2.2                 March 13, 2022     io_uring_prep_fadvise(3)

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