On Mon, 6 Mar 2000, V Ganesh wrote:
> > They have. ls(1) is buggy, that's it. If you want the listing of "." -
> > fine, open ".", but then you must care to call stat() on ./name. Yes,
> > there is no way to open the mountpoint. So?
>
> so it breaks the assumption that . == pwd.
Yes, it does.
> $ ls
> foo bar
> $ cat foo
> foo: no such file or directory
> $ cat ./foo
> FOO
> $
>
> cat foo ought to have worked. anything else is a gross violation of the least
> surprise principle, if not any actual standard.
Excuse me? Why? We have an object - pwd. Lookup goes from that object.
_That_ should not be changed by any mount. Notice that if you had it
opened before mount() readdir() on it would return its contents.
Look: step of lookup ends with the step upwards. It's 3-d structure, not
2-d one. You are getting exactly what you ask for - "." is "do the step
with zero horizontal part". E.g. "go upwards". Which is no-op for
everything except the mountpoints. Your problem being?
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