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Date: Tue, 10 Jun 2025 06:34:51 +0200
From: Christoph Hellwig <hch@lst.de>
To: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
	Chuck Lever <chuck.lever@oracle.com>,
	Trond Myklebust <trondmy@kernel.org>,
	Anna Schumaker <anna@kernel.org>,
	David Howells <dhowells@redhat.com>, linux-nfs@vger.kernel.org,
	kernel-tls-handshake <kernel-tls-handshake@lists.linux.dev>,
	keyrings@vger.kernel.org
Subject: Re: [PATCH 2/2] nfs: create a kernel keyring
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References: <20250515115107.33052-3-hch@lst.de> <c2044daa-c68e-43bf-8c28-6ce5f5a5c129@grimberg.me> <aCdv56ZcYEINRR0N@kernel.org> <692256f1-9179-4c19-ba17-39422c9bad69@grimberg.me> <20250602152525.GA27651@lst.de> <aEB3jDb3EK2CWqNi@kernel.org> <20250605042802.GA834@lst.de> <aEMbvQ7EekwPHQ8c@kernel.org> <20250609040143.GA26162@lst.de> <d34245cfc6c3dcf86969682e7c35a131c6100d47.camel@kernel.org>
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User-Agent: Mutt/1.5.17 (2007-11-01)

On Tue, Jun 10, 2025 at 12:28:49AM +0300, Jarkko Sakkinen wrote:
> On Mon, 2025-06-09 at 06:01 +0200, Christoph Hellwig wrote:
> > On Fri, Jun 06, 2025 at 07:47:57PM +0300, Jarkko Sakkinen wrote:
> > > Ah, ok this cleared it up, thanks! Just learning these subsystem,
> > > appreciate the patience with this one :-)
> > 
> > I'm also just learning the keyring, so double checking from that
> > perspective is also always welcome..
> 
> After quickly studying tlshd, my understanding is that the ".nfs" is a
> "vault for transient stuff" passed to "keyrings" configuration option.
> After that serials within that vault are passed to mount-options
> defined in 1/2.

Yes.  I'll try to make it more clear for a resend, and I also plan
to write documents for using TLS and thus the keyrings with NFS and
nvme.