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From: Roman Gushchin <roman.gushchin@linux.dev>
To: Matthew Wilcox <willy@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-mm@kvack.org, Vlastimil Babka <vbabka@suse.cz>,
	linux-kernel@vger.kernel.org, stable@vger.kernel.org,
	Hugh Dickins <hughd@google.com>
Subject: Re: [PATCH v2] mm: page_alloc: move mlocked flag clearance into free_pages_prepare()
Date: Tue, 22 Oct 2024 02:14:39 +0000	[thread overview]
Message-ID: <ZxcKjwhMKmnHTX8Q@google.com> (raw)
In-Reply-To: <Zxa60Ftbh8eN1MG5@casper.infradead.org>

On Mon, Oct 21, 2024 at 09:34:24PM +0100, Matthew Wilcox wrote:
> On Mon, Oct 21, 2024 at 05:34:55PM +0000, Roman Gushchin wrote:
> > Fix it by moving the mlocked flag clearance down to
> > free_page_prepare().
> 
> Urgh, I don't like this new reference to folio in free_pages_prepare().
> It feels like a layering violation.  I'll think about where else we
> could put this.

I agree, but it feels like it needs quite some work to do it in a nicer way,
no way it can be backported to older kernels. As for this fix, I don't
have better ideas...

  parent reply	other threads:[~2024-10-22  2:14 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-21 17:34 [PATCH v2] mm: page_alloc: move mlocked flag clearance into free_pages_prepare() Roman Gushchin
2024-10-21 17:57 ` Shakeel Butt
2024-10-22  2:11   ` Roman Gushchin
2024-10-21 19:49 ` Hugh Dickins
2024-10-22  2:16   ` Roman Gushchin
2024-11-06  1:09     ` Sean Christopherson
2024-11-06  1:32       ` Roman Gushchin
2024-11-06  2:19         ` Hugh Dickins
2024-10-21 20:34 ` Matthew Wilcox
2024-10-21 21:14   ` Hugh Dickins
2024-10-22  2:14   ` Roman Gushchin [this message]
2024-10-22  3:47     ` Matthew Wilcox
2024-10-22  4:33       ` Roman Gushchin
2024-10-22  8:26         ` Yosry Ahmed
2024-10-22 15:39           ` Sean Christopherson
2024-10-22 16:59             ` Matthew Wilcox
2024-10-22 19:52               ` Sean Christopherson
2024-10-23  2:04             ` Roman Gushchin

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