Re: [PATCH] Ext4: Make file creation time, i_version andi_generation available by xattrs

From: Jeremy Allison
Date: Tue Jun 29 2010 - 18:59:52 EST

On Tue, Jun 29, 2010 at 11:44:37PM +0100, David Howells wrote:
> Jeremy Allison <jra@xxxxxxxxx> 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.

#if defined(_NETBSD_SOURCE)
struct timespec st_birthtimespec; /* time of inode creation */
time_t st_birthtime; /* time of inode creation */
long st_birthtimensec; /* nsec of inode creation */

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).

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at