Re: [PATCH]Fix bug:rmdir could remove current working directory

[Linus Torvalds]

In article <[e-mail]>,
Mingming cao  <[e-mail]> wrote:
>
>I thought about the case when rmdir() on the cwd of other processes,
>but, as you said, that is implementation dependent. However rmdir() on
>"." does returns EBUSY error.

That's a completely different thing, though - even though the difference
is rather subtle.

You can remove pretty much any empty directory (if the filesystem
permits it - some don't). HOWEVER, you can not use "." as the final
component of your pathname.

It has nothing to do with home directory: you can try just doing

	mkdir /tmp/hello
	rmdir /tmp/hello/.

and you'll get the same error (and it _should_ return EINVAL, not EBUSY.
EBUSY is for the "this filesystem doesn't allow you to remove a
directory that is in use" case).

			Linus