From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 06C4F211A28 for ; Thu, 12 Feb 2026 18:05:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770919513; cv=none; b=HDYusksBl803+hnchaGPOKiiE5u7Nm3Bp2znqhdLfNrsOJATNL2m4mclE3v0q06xk58EaUOMiy5Jw68FubcmDN3AH2r2oiD0rzU/gzvIjthmQcNjl91ZJRNVpsichS5CwFmDo0zAtscKysPdjsDeLaWBJfWDLAG8yo+J0kqVwqQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770919513; c=relaxed/simple; bh=UKfZRICIwwRzfqfHezzRxNS8OKZSZrZb8EBmzYu9ksU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=NZrH3h5wRhZknLnSY7hhZuk2WbOmiv/h0kz3LK9TwsRVKQ5T8KUTJOAPby/sLuIm3XpR8WpEEGRclvJZLkBEqrdaFXDN/xEuYfiP8yXUaK2oL1Eoaudhc00jWF8/sB8NZsmliVWWHSoqA/fUEhpYDF1Y3OZwookpJM208iaWs1E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=n+vkMhPy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="n+vkMhPy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 96593C4CEF7; Thu, 12 Feb 2026 18:05:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770919512; bh=UKfZRICIwwRzfqfHezzRxNS8OKZSZrZb8EBmzYu9ksU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=n+vkMhPyIyuFnGduuFUtqLeRCeKmAEwYuzvOos0KdULgl4JlzF4Pk0PvP9tCUiP2H 6itvULtvqRc04eUgGoSDVBfb7GA/GXUmtRUsL4iMPSOym80x2gluNa03GQQ08dqrGE zBBqRWAUf1eAbclt9Lkx699Dq7Pnbl3YF8Iv1QlxotN++HBFx6j9aAOyv1LabdS5N+ BFChBRXw5cPkJB/Eg6b2wkOFc+wo5V+747z4WKiKu6kYRH41ZFH6lpvvlQ3X3j7usf d1wCn3YtLNQwGAz06j/rFQYhpYn1+Gj5y2of9c5vC0IbCWDJD5y55O3YaXOxdZhdmT /pclZ4ckYIi8w== Message-ID: <5c5dfe82-0b51-41dd-bfce-2ad80fbf2ff6@kernel.org> Date: Thu, 12 Feb 2026 19:05:09 +0100 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] smaps: Report correct page sizes with THP To: Andi Kleen Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, akpm@linux-foundation.org, willy@infradead.org References: <20260209201731.231667-1-ak@linux.intel.com> <94a21bda-5677-4949-a1df-3f0d90348021@kernel.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2/12/26 18:58, Andi Kleen wrote: >> We have AnonHugePages:, ShmemPmdMapped: and FilePmdMapped: that tell you >> exactly what you want to know. > > .... if you know about it. I personally wasted a lot of time on it > because we trusted a lie. It is confusing, I agree. I don't know why we added it in the first place. > >> >> Especially the mixed thing is just nasty. >> >> Once we go into cont-pte territory (or automatic pte coalescing by hardware) >> it all gets confusing. > > In this case it can be extended to more. > >> >> Sorry, NAK. > > Okay then just remove the page size if it's fictional outside hugetlb anyways? I'm sure that would break some tooling. -- Cheers, David