linux-kernel - Re: [PATCH v3 1/2] alloc_tag: introduce clear_page_tag

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Message-ID: <30a2d98d-6f72-4a88-8d90-8a5861b0b2c6@redhat.com>
Date: Tue, 13 Aug 2024 17:08:47 +0200
From: David Hildenbrand <david@...hat.com>
To: Suren Baghdasaryan <surenb@...gle.com>, akpm@...ux-foundation.org
Cc: kent.overstreet@...ux.dev, vbabka@...e.cz, pasha.tatashin@...een.com,
 souravpanda@...gle.com, keescook@...omium.org, linux-kernel@...r.kernel.org,
 linux-mm@...ck.org, stable@...r.kernel.org
Subject: Re: [PATCH v3 1/2] alloc_tag: introduce clear_page_tag_ref() helper
 function

On 13.08.24 17:07, Suren Baghdasaryan wrote:
> In several cases we are freeing pages which were not allocated using
> common page allocators. For such cases, in order to keep allocation
> accounting correct, we should clear the page tag to indicate that the
> page being freed is expected to not have a valid allocation tag.
> Introduce clear_page_tag_ref() helper function to be used for this.
> 
> Suggested-by: David Hildenbrand <david@...hat.com>
> Signed-off-by: Suren Baghdasaryan <surenb@...gle.com>
> Cc: stable@...r.kernel.org # v6.10
> ---

Acked-by: David Hildenbrand <david@...hat.com>

-- 
Cheers,

David / dhildenb