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From: David Howells <dhowells@redhat.com>
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To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: dhowells@redhat.com, Christoph Hellwig <hch@infradead.org>,
        mtk.manpages@gmail.com,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
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Subject: Re: statx manpage
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Date: Tue, 07 Mar 2017 18:55:33 +0000
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Darrick J. Wong <darrick.wong@oracle.com> wrote:

> > > Hm.  Judging from the ext4 patch you proposed, I gather this is
> > > expected, at least in the btime case.
> 
> Ugh, I put that in the wrong part -- this was supposed to be a comment
> about the part where the manpage states that filesystems can return more
> than userspace asked for.

In that case, sort of.  You could just ask for STATX_TYPE | STATX_MODE, for
example, but the kernel is perfectly at liberty to add STATX_MTIME,
STATX_SIZE, STATX_INO, etc. even if it doesn't add STATX_BTIME as well.

> My eyes are bad at reading manpage source. :/

I know what you mean.

David