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    SubjectRe: [ANNOUNCE] Ext3 vs Reiserfs benchmarks
    On Mon, 15 Jul 2002, Thunder from the hill wrote:

    > Hi,
    >
    > On 15 Jul 2002, Patrick J. LoPresti wrote:
    > > Note that this means writing a truly reliable shell or Perl script is
    > > tricky. I suppose you can "use POSIX qw(fsync);" in Perl. But what do
    > > you do for a shell script? /bin/sync :-) ?
    >
    > Write a binary (/usr/bin/fsync) which opens a fd, fsync it, close it, be
    > done with it.

    Or steal one from FreeBSD (written by Paul Saab), fix the err() function
    and be done with it.

    .../usr.bin/fsync/fsync.{1,c}

    Interesting side note -- mind the O_RDONLY:

    for (i = 1; i < argc; ++i) {
    if ((fd = open(argv[i], O_RDONLY)) < 0)
    err(1, "open %s", argv[i]);

    if (fsync(fd) != 0)
    err(1, "fsync %s", argv[1]);
    close(fd);
    }
    -
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