Messages in this thread | | | Date | Tue, 29 Jun 2010 15:59:44 -0700 | From | Jeremy Allison <> | Subject | Re: [PATCH] Ext4: Make file creation time, i_version and i_generation available by xattrs |
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On Tue, Jun 29, 2010 at 11:44:37PM +0100, David Howells wrote: > Jeremy Allison <jra@samba.org> wrote: > > > We already have code in Samba to detect "birthtime" > > (st_btime) as a returned member of a stat struct. > > Is it, though? > > Googling for st_btime suggests it could also be taken as the time last > archived. That may just be a NetWareism though.
It's a *BSD'ism.
http://www.daemon-systems.org/man/fstat.2.html
#if defined(_NETBSD_SOURCE) struct timespec st_birthtimespec; /* time of inode creation */ #else time_t st_birthtime; /* time of inode creation */ long st_birthtimensec; /* nsec of inode creation */ #endif
http://www.unix.com/man-page/FreeBSD/2/stat/
st_birthtime Time when the inode was created.
Of course, for Samba's use we also have to be able to *write* to st_birthtime as Windows clients can change this. But that's what the EA is for (and I'm happy with a system that can only read st_birthtime, not write it).
Jeremy.
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