linux-kernel - Re: [PATCH v6 00/15] Create and use APIs to centralise locking for directory ops

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Message-ID: <20251114-baden-banknoten-96fb107f79d7@brauner>
Date: Fri, 14 Nov 2025 13:24:41 +0100
From: Christian Brauner <brauner@...nel.org>
To: NeilBrown <neil@...wn.name>
Cc: Alexander Viro <viro@...iv.linux.org.uk>, 
	Amir Goldstein <amir73il@...il.com>, Jan Kara <jack@...e.cz>, linux-fsdevel@...r.kernel.org, 
	Jeff Layton <jlayton@...nel.org>, Chris Mason <clm@...com>, David Sterba <dsterba@...e.com>, 
	David Howells <dhowells@...hat.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	"Rafael J. Wysocki" <rafael@...nel.org>, Danilo Krummrich <dakr@...nel.org>, 
	Tyler Hicks <code@...icks.com>, Miklos Szeredi <miklos@...redi.hu>, 
	Chuck Lever <chuck.lever@...cle.com>, Olga Kornievskaia <okorniev@...hat.com>, 
	Dai Ngo <Dai.Ngo@...cle.com>, Namjae Jeon <linkinjeon@...nel.org>, 
	Steve French <smfrench@...il.com>, Sergey Senozhatsky <senozhatsky@...omium.org>, 
	Carlos Maiolino <cem@...nel.org>, John Johansen <john.johansen@...onical.com>, 
	Paul Moore <paul@...l-moore.com>, James Morris <jmorris@...ei.org>, 
	"Serge E. Hallyn" <serge@...lyn.com>, Stephen Smalley <stephen.smalley.work@...il.com>, 
	Ondrej Mosnacek <omosnace@...hat.com>, Mateusz Guzik <mjguzik@...il.com>, 
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, Stefan Berger <stefanb@...ux.ibm.com>, 
	"Darrick J. Wong" <djwong@...nel.org>, linux-kernel@...r.kernel.org, netfs@...ts.linux.dev, 
	ecryptfs@...r.kernel.org, linux-nfs@...r.kernel.org, linux-unionfs@...r.kernel.org, 
	linux-cifs@...r.kernel.org, linux-xfs@...r.kernel.org, linux-security-module@...r.kernel.org, 
	selinux@...r.kernel.org
Subject: Re: [PATCH v6 00/15] Create and use APIs to centralise locking for
 directory ops

On Thu, Nov 13, 2025 at 11:18:23AM +1100, NeilBrown wrote:
> Following is a new version of this series:
>  - fixed a bug found by syzbot
>  - cleanup suggested by Stephen Smalley
>  - added patch for missing updates in smb/server - thanks Jeff Layton

The codeflow right now is very very gnarly in a lot of places which
obviously isn't your fault. But start_creating() and end_creating()
would very naturally lend themselves to be CLASS() guards.

Unrelated: I'm very inclined to slap a patch on top that renames
start_creating()/end_creating() and start_dirop()/end_dirop() to
vfs_start_creating()/vfs_end_creating() and
vfs_start_dirop()/vfs_end_dirop(). After all they are VFS level
maintained helpers and I try to be consistent with the naming in the
codebase making it very easy to grep.