On Tue, Sep 3, 2013 at 7:00 PM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
>
> That aside, I'm really not happy with this kind of games; this stuff clearly
> belongs in fs/namei.c where we can simply see the last component. Doing that
> on the level of "let's scan the pathname for slashes, etc." is just plain
> wrong. Let's step back for a minute here; what are you trying to do?
> You have a pathname that should resolve to a mountpoint, without triggering
> automount (or crossing into the mountpoint, for that matter) and you want
> struct path for the bottom of that mount stack? Or is it something
> completely different?
Can we add a LOOKUP_NOAUTOMNT bit or something (not exposed to user
space, only used for this particular kern_path() call). Then, if/when
automount gets called recursively (through autofs4_lookup? Or is it
just the autofs4_d_automount() interface?) it can just decide to not
follow that last path.
Hmm? I don't think we pass in the lookup-flags to d_automount, but
that could be changed. Yes?
Linus
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