netdev - Re: [PATCH] mm: Decline to manipulate the refcount on a slab page

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Message-ID: <Z9KK-n_JxOQ85Vgp@infradead.org>
Date: Thu, 13 Mar 2025 00:36:26 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Hannes Reinecke <hare@...e.de>
Cc: Christoph Hellwig <hch@...radead.org>,
	Matthew Wilcox <willy@...radead.org>,
	Jakub Kicinski <kuba@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>, netdev@...r.kernel.org,
	Vlastimil Babka <vbabka@...e.cz>, linux-mm@...ck.org
Subject: Re: [PATCH] mm: Decline to manipulate the refcount on a slab page

On Thu, Mar 13, 2025 at 08:22:01AM +0100, Hannes Reinecke wrote:
> On 3/12/25 06:48, Christoph Hellwig wrote:
> > On Tue, Mar 11, 2025 at 04:59:53PM +0000, Matthew Wilcox wrote:
> > > So I have two questions:
> > > 
> > > Hannes:
> > >   - Why does nvme need to turn the kvec into a bio rather than just
> > >     send it directly?
> > 
> > It doensn't need to and in fact does not.
> > 
> Errm ... nvmf_connect_admin_queue()/nvmf_connect_io_queue() does ...

No kvec there.  Just plain old passthrough commands like many others.