Re: [PATCH 13/19] VFS: lock dentry for ->revalidate to avoid races with rename etc

To: NeilBrown <neilb@xxxxxxx>
Subject: Re: [PATCH 13/19] VFS: lock dentry for ->revalidate to avoid races with rename etc
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Fri, 7 Feb 2025 20:28:39 +0000
Cc: Christian Brauner <brauner@xxxxxxxxxx>, Jan Kara <jack@xxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Jeff Layton <jlayton@xxxxxxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20250206054504.2950516-14-neilb@suse.de>

On Thu, Feb 06, 2025 at 04:42:50PM +1100, NeilBrown wrote:

> +	if (dentry->d_flags & LOOKUP_RCU) {

Really?

Follow-Ups:
- Re: [PATCH 13/19] VFS: lock dentry for ->revalidate to avoid races with rename etc
  - From: Al Viro

References:
- [PATCH 00/19 v7?] RFC: Allow concurrent and async changes in a directory
  - From: NeilBrown
- [PATCH 13/19] VFS: lock dentry for ->revalidate to avoid races with rename etc
  - From: NeilBrown