From: Hannes Reinecke <hare@suse.de>
To: Matthew Wilcox <willy@infradead.org>
Cc: netdev@vger.kernel.org, Vlastimil Babka <vbabka@suse.cz>,
linux-mm@kvack.org
Subject: Re: [PATCH] mm: Decline to manipulate the refcount on a slab page
Date: Tue, 11 Mar 2025 08:05:26 +0100 [thread overview]
Message-ID: <e67952a9-f810-4fc9-9fc3-2f94dfba16b6@suse.de> (raw)
In-Reply-To: <Z88vUFweLyk5s8UD@casper.infradead.org>
On 3/10/25 19:28, Matthew Wilcox wrote:
> On Mon, Mar 10, 2025 at 05:57:51PM +0100, Hannes Reinecke wrote:
>> On 3/10/25 15:27, Matthew Wilcox (Oracle) wrote:
>> I assume we will have a discussion at LSF around frozen pages/slab
>> behaviour?
>> It's not just networking, also every driver using iov_alloc_pages() and
>> friends is potentially affected.
>> And it would be good to clarify rules how these iterators should be
>> used.
>
> Sure, we can do that. I haven't conducted a deep survey of how many
> page users really need a refcount, so I'll have things to learn too.
That would be awesome.
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich
next parent reply other threads:[~2025-03-11 7:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20250310142750.1209192-1-willy@infradead.org>
[not found] ` <77fa8d7e-4752-4979-affe-aa45c8d7795a@suse.de>
[not found] ` <Z88vUFweLyk5s8UD@casper.infradead.org>
2025-03-11 7:05 ` Hannes Reinecke [this message]
2025-03-10 14:35 Matthew Wilcox (Oracle)
2025-03-10 14:37 ` Vlastimil Babka
2025-03-10 14:50 ` Matthew Wilcox
2025-03-11 10:15 ` Jakub Kicinski
2025-03-11 15:46 ` Hannes Reinecke
2025-03-11 16:59 ` Matthew Wilcox
2025-03-12 5:48 ` Christoph Hellwig
2025-03-13 7:22 ` Hannes Reinecke
2025-03-13 7:36 ` Christoph Hellwig
2025-03-13 8:34 ` Hannes Reinecke
2025-03-13 8:44 ` Christoph Hellwig
2025-03-13 8:52 ` Hannes Reinecke
2025-03-13 9:15 ` Christoph Hellwig
2025-03-12 5:47 ` Christoph Hellwig
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