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Message-ID: <CAHk-=whPwMTTaGtphubBXeiKitKigutddx9Fcp4Sf1sw4tpyeA@mail.gmail.com>
Date: Thu, 20 Feb 2020 15:00:13 -0800
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Al Viro <viro@...iv.linux.org.uk>
Cc: "Eric W. Biederman" <ebiederm@...ssion.com>, LKML <linux-kernel@...r.kernel.org>,
Kernel Hardening <kernel-hardening@...ts.openwall.com>, Linux API <linux-api@...r.kernel.org>,
Linux FS Devel <linux-fsdevel@...r.kernel.org>,
Linux Security Module <linux-security-module@...r.kernel.org>,
Akinobu Mita <akinobu.mita@...il.com>, Alexey Dobriyan <adobriyan@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>, Andy Lutomirski <luto@...nel.org>,
Daniel Micay <danielmicay@...il.com>, Djalal Harouni <tixxdz@...il.com>,
"Dmitry V . Levin" <ldv@...linux.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Ingo Molnar <mingo@...nel.org>, "J . Bruce Fields" <bfields@...ldses.org>,
Jeff Layton <jlayton@...chiereds.net>, Jonathan Corbet <corbet@....net>,
Kees Cook <keescook@...omium.org>, Oleg Nesterov <oleg@...hat.com>,
Solar Designer <solar@...nwall.com>
Subject: Re: [PATCH 4/7] proc: Use d_invalidate in proc_prune_siblings_dcache
On Thu, Feb 20, 2020 at 2:54 PM Al Viro <viro@...iv.linux.org.uk> 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
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