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SubjectRe: [PATCH]Fix bug:rmdir could remove current working directory
Date
In article <3BC4EFFC.42ACE59E@us.ibm.com>,
Mingming cao <cmm@us.ibm.com> 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
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