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


On Wed, 10 Oct 2001, Mingming cao wrote:

> Hi Linus, Alan and Al,
>
> I found that rmdir(2) could remove current working directory
> successfully. This happens when the given pathname points to current
> working directory, not ".", but something else. For example, the current
> working directory's absolute pathname. I read the man page of
> rmdir(2). It says in this case EBUSY error should be returned. I
> suspected this is a bug and added a check in vfs_rmdir(). The following
> patch is against 2.4.10 and has been verified. Please comment and
> apply.

It's not a bug. Moreover, test you add is obviously bogus - what about
cwd of other processes?

Actually, rmdir() on a busy directory _is_ OK. Implementation is allowed
to refuse doing that, but it's not required to.

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