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    SubjectRe: [PATCH 02/18] xstat: Add a pair of system calls to make extended file stats available [ver #6]
    On Thu, Jul 22, 2010 at 5:17 AM, Volker Lendecke
    <> wrote:
    > On Thu, Jul 22, 2010 at 01:14:47PM +0100, David Howells wrote:
    >> Jan Engelhardt <> wrote:
    >> > Linux already has a creation time field, it's called otime (there is no "b"
    >> > in "creation"), and you will find scattered fragments of that all over the
    >> > kernel (foremost, fs/jfs/, now btrfs, and I also notice sysvipc having
    >> > something with that name).
    >> It is?  It's called crtime in Ext4.  st_btime, however, would be compatible
    >> with BSD's stat, and Samba would just use it by way of autoconf magic if it
    >> appeared.
    > Samba has the following check:
    > # recent FreeBSD, NetBSD have creation timestamps called birthtime:
    > AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_nsec])
    > AC_CHECK_MEMBERS([struct stat.st_birthtime], AC_CHECK_MEMBERS([struct stat.st_birthtimensec]))
    > and the supporting code around that. "birth" might also be
    > where the "b" comes from :-)

    Oh wow. And all of this just convinces me that we should _not_ do any
    of this, since clearly it's all totally useless and people can't even
    agree on a name.

    Let's wait five years and see if there is actually any consensus on it
    being needed and used at all, rather than rush into something just
    because "we can".

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