From: Matthew Wilcox <willy@infradead.org>
To: Kent Overstreet <kent.overstreet@linux.dev>
Cc: linux-mm@kvack.org, Vlastimil Babka <vbabka@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
Hyeonggon Yoo <42.hyeyoo@gmail.com>
Subject: Re: [PATCH] mm/slub: Make __ksize() faster
Date: Fri, 8 Mar 2024 17:06:54 +0000 [thread overview]
Message-ID: <ZetFrixmULTtjPCK@casper.infradead.org> (raw)
In-Reply-To: <6iv6cmclbkx4vrhpohjlg6r3pf7cf3nsgiydycmsmlhsrjo4bd@bohvkgia6wyx>
On Fri, Mar 08, 2024 at 11:27:32AM -0500, Kent Overstreet wrote:
> On Fri, Mar 08, 2024 at 02:58:48PM +0000, Matthew Wilcox wrote:
> > There are potentiually better uses for those bits. We could turn
> > folio_test_slab() into a PageType test, freeing up a page flag.
>
> They overlap _mapcount, did you figure out how to use that for a
> PageType enum?
In 2018 ... 6e292b9be7f4358985ce33ae1f59ab30a8c09e08
next prev parent reply other threads:[~2024-03-08 17:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-08 3:13 [PATCH] mm/slub: Make __ksize() faster Kent Overstreet
2024-03-08 4:48 ` Matthew Wilcox
2024-03-08 5:16 ` Kent Overstreet
2024-03-08 14:58 ` Matthew Wilcox
2024-03-08 16:27 ` Kent Overstreet
2024-03-08 17:06 ` Matthew Wilcox [this message]
2024-03-08 17:12 ` Christoph Lameter (Ampere)
2024-03-08 18:26 ` Matthew Wilcox
2024-03-08 20:58 ` Kent Overstreet
2024-03-08 21:28 ` Christoph Lameter (Ampere)
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