# Re: \[PATCH 4/7\] proc: Use d\_invalidate in proc\_prune\_siblings\_dcache

- From: Linus Torvalds \<torvalds@linux-foundation.org\>
- Date: 2020-02-20 23:08:36 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2020/02/173458
- Thread: https://ratatoskr.run/linux-api/2020/02/173442/t.md

```text
On Thu, Feb 20, 2020 at 2:54 PM Al Viro [ref] wrote:
>
> s/no inode.*/it's a directory inode./

That actually makes my worry go away too. We don't allow aliases for
directory inodes, iirc.

So then it doesn't depend on some /proc implementation issue any more,
then it's fundamental that there's only one dentry.

            Linus
```