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

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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@xxxxxxx                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich




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