On Tue, 15 Nov 2005, Jamie Lokier wrote:
> Linus Torvalds wrote:
> > And if it _is_ properly named (ie it really does mean "this entry
> > positively does not exist") then it shouldn't have the same
> > representation as NULL, because NULL really is traditionally used
> > for "unknown" rather than "known to not exist".
>
> You mean like:
>
> > a negative dentry (dentry->d_inode = NULL) is another.
>
> ? :)
The _dentry_ is negative, and it is not NULL. It has an explicit flag
saying that it's negative.
We do not have negative inode caches.
Linus
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