io_uring_prep_sync_file_range(3) — Linux manual page

io_uring_p..._file_range(3)  liburing Manual  io_uring_p..._file_range(3)

NAME         top

       io_uring_prep_sync_file_range - prepare a sync_file_range request

SYNOPSIS         top

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

       void io_uring_prep_sync_file_range(struct io_uring_sqe *sqe,
                                          int fd,
                                          unsigned len,
                                          __u64 offset,
                                          int flags);

DESCRIPTION         top

       The io_uring_prep_sync_file_range(3) function prepares a
       sync_file_range request. The submission queue entry sqe is setup
       to use the file descriptor fd that should get len bytes synced
       started at offset offset and with modifier flags in the flags
       argument.

       This function prepares an async sync_file_range(2) request. See
       that man page for details on the arguments.

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), sync_file_range(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 io-uring@vger.kernel.org.  This page
       was obtained from the project's upstream Git repository
       ⟨https://github.com/axboe/liburing⟩ on 2025-08-11.  (At that time,
       the date of the most recent commit that was found in the
       repository was 2025-08-02.)  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-2.2                  March 12, 2022  io_uring_p..._file_range(3)

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