linux-kernel - Re: [PATCH v4 12/14] ecryptfs: use new start_creating/start

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Message-ID: <20251030062420.GX2441659@ZenIV>
Date: Thu, 30 Oct 2025 06:24:20 +0000
From: Al Viro <viro@...iv.linux.org.uk>
To: NeilBrown <neil@...wn.name>
Cc: Christian Brauner <brauner@...nel.org>,
	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,
	apparmor@...ts.ubuntu.com, linux-security-module@...r.kernel.org,
	selinux@...r.kernel.org
Subject: Re: [PATCH v4 12/14] ecryptfs: use new start_creating/start_removing
 APIs

On Thu, Oct 30, 2025 at 10:31:12AM +1100, NeilBrown wrote:

> +static struct dentry *ecryptfs_start_creating_dentry(struct dentry *dentry)
>  {
> -	struct dentry *lower_dir_dentry;
> +	struct dentry *parent = dget_parent(dentry->d_parent);

"Grab the reference to grandparent"?