On Mon, Nov 3, 2014 at 12:34 AM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
>
> That doesn't help because we explicitly reject O_RDONLY when combined
> with O_TMPFILE.
You obviously cannot actually have a read-only file descriptor with
O_TMPFILE, unless all you care about is a zero-sized file with no
contents.
That's why people are talking about things like downgrading the file
*after* filling it, using sealing.
Linus
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