From nobody Tue Sep 16 04:50:18 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AB66FC5479D for ; Mon, 9 Jan 2023 21:34:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237134AbjAIVeS (ORCPT ); Mon, 9 Jan 2023 16:34:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235477AbjAIVdw (ORCPT ); Mon, 9 Jan 2023 16:33:52 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A9A6F59 for ; Mon, 9 Jan 2023 13:33:49 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id F1AFB6141D for ; Mon, 9 Jan 2023 21:33:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 673A3C433D2; Mon, 9 Jan 2023 21:33:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673300028; bh=SYYr0BTjmOo642m5NR3wSprE6Rj/MW96ULPD1Kbq3N4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q25whl2K6ubCd0mSRCAhV2abNV6arYJzypS9C6dgW1BHriuFbw8yu2UNtObHkGoo5 gFh4wNew0WdzD5BDISr8G2JEaOWrmiWYJgLs/1Aqt8Nz50eVSW7uGSGy/N+9aXgEi4 6zW0OwgSDQ7zGALkkf3vCQx5muQaAmlvxH4ry1T+cYP8sS7SXLaxvgSoXehUok9YU0 UQsVBtCxtIJUszstXt735cqzC5YQJtPCO95WNtN0kf2zXGXXExj0kBoBkwAYFQPXDs AjPDe8OGaczVaic7Pcma+e9e/jShrhySjFSw1EUGzgUl5hJ7PZczmNBCXnoEIgfmFe 2+MH0CMWBrBUQ== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 5/6] mm/damon/paddr: remove folio_sz field from damon_pa_access_chk_result Date: Mon, 9 Jan 2023 21:33:34 +0000 Message-Id: <20230109213335.62525-6-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230109213335.62525-1-sj@kernel.org> References: <20230109213335.62525-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" DAMON physical address space monitoring operations set gets and saves size of the folio for a given physical address inside rmap walks, but it can be directly caluclated outside of the walks. Remove the 'folio_sz' field from 'damon_pa_access_chk_result struct' and calculate the size directly from outside of the walks. Signed-off-by: SeongJae Park --- mm/damon/paddr.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index 65c1e0f91535..b51606519bbd 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -80,8 +80,6 @@ static void damon_pa_prepare_access_checks(struct damon_c= tx *ctx) } =20 struct damon_pa_access_chk_result { - /* size of the folio for the access checked physical memory address */ - unsigned long folio_sz; bool accessed; }; =20 @@ -92,7 +90,6 @@ static bool __damon_pa_young(struct folio *folio, struct = vm_area_struct *vma, DEFINE_FOLIO_VMA_WALK(pvmw, folio, vma, addr, 0); =20 result->accessed =3D false; - result->folio_sz =3D PAGE_SIZE; while (page_vma_mapped_walk(&pvmw)) { addr =3D pvmw.address; if (pvmw.pte) { @@ -104,7 +101,6 @@ static bool __damon_pa_young(struct folio *folio, struc= t vm_area_struct *vma, result->accessed =3D pmd_young(*pvmw.pmd) || !folio_test_idle(folio) || mmu_notifier_test_young(vma->vm_mm, addr); - result->folio_sz =3D HPAGE_PMD_SIZE; #else WARN_ON_ONCE(1); #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ @@ -123,7 +119,6 @@ static bool damon_pa_young(unsigned long paddr, unsigne= d long *folio_sz) { struct folio *folio =3D damon_get_folio(PHYS_PFN(paddr)); struct damon_pa_access_chk_result result =3D { - .folio_sz =3D PAGE_SIZE, .accessed =3D false, }; struct rmap_walk_control rwc =3D { @@ -158,7 +153,7 @@ static bool damon_pa_young(unsigned long paddr, unsigne= d long *folio_sz) folio_put(folio); =20 out: - *folio_sz =3D result.folio_sz; + *folio_sz =3D folio_size(folio); return result.accessed; } =20 --=20 2.25.1