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Re: [RFC] DT_WHT
On Mon, 2018-03-05 at 10:47 +0100, Florian Weimer wrote:
> On 03/05/2018 02:50 AM, Ben Hutchings wrote:
> > I have no opinion on that code, but it sounded like you proposed to
> > remove the macro definition too. I wanted to point out that the macro
> > is meaningful and may be useful to applications.
>
> Useful in what sense? What are its semantics?
A white-out entry is a placeholder written to the upper layer of a
union filesystem that hides an entry in the lower layer.
You'll never see these directory entries when looking at the union
filesystem, but can do if you look at the upper layer directly.
Ben.
--
Ben Hutchings
Software Developer, Codethink Ltd.