From nobody Sat Oct 4 00:32:10 2025 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (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 C95982F618B for ; Fri, 22 Aug 2025 09:48:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755856094; cv=none; b=n76blagDVntOwxV8sCkDeoB7Mpr/PwN0zsMPMMj+52eaPytCHC8yr+iJi9HpBmRm+bB1/+0FdgFqvWLc4RLtMGP9TJSd9XFL1qUSkQX5sOcSgoGmwym1pKWvJwykjd18wprlSI8a+vVzJoyo4OWYQkcE2q3aHXmBRfeaueLReRs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755856094; c=relaxed/simple; bh=EGiAcJ2uOIxk3qhNXlY6rL1YgjYX5YeT4zqc2Shw8D4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=KPOcg0ZhN/Bt0X4Es63Jsvr2T2D5oz1rHuRsM043BK5nmvtpZ5IJ3Rfi0TkVi2ZswiSnz7N2Cd49AkzCEm+LerbEq5XgJqBJA2yVF+TVwvBU4UfSyqe/Z2YCIyP4PxuVyBaxmry7I4WGsPw9GRXbOCKfczmq2efdym89u65jCCM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.187 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.162.254]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4c7Zz36z9kz13NH4; Fri, 22 Aug 2025 17:44:31 +0800 (CST) Received: from dggpemf200018.china.huawei.com (unknown [7.185.36.31]) by mail.maildlp.com (Postfix) with ESMTPS id CB43A180495; Fri, 22 Aug 2025 17:48:07 +0800 (CST) Received: from huawei.com (10.50.85.135) by dggpemf200018.china.huawei.com (7.185.36.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Fri, 22 Aug 2025 17:48:07 +0800 From: Quanmin Yan To: CC: , , , , , , Subject: [PATCH v2 03/11] mm/damon/paddr: support addr_unit for DAMOS_PAGEOUT Date: Fri, 22 Aug 2025 17:34:11 +0800 Message-ID: <20250822093420.2103803-4-yanquanmin1@huawei.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250822093420.2103803-1-yanquanmin1@huawei.com> References: <20250822093420.2103803-1-yanquanmin1@huawei.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: kwepems500002.china.huawei.com (7.221.188.17) To dggpemf200018.china.huawei.com (7.185.36.31) Content-Type: text/plain; charset="utf-8" From: SeongJae Park Add support of addr_unit for DAMOS_PAGEOUT action handling from the DAMOS operation implementation for the physical address space. Signed-off-by: SeongJae Park Signed-off-by: Quanmin Yan Reviewed-by: SeongJae Park Reported-by: kernel test robot --- mm/damon/paddr.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index d497373c2bd2..826c2064dbfd 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -135,10 +135,11 @@ static bool damon_pa_invalid_damos_folio(struct folio= *folio, struct damos *s) return false; } =20 -static unsigned long damon_pa_pageout(struct damon_region *r, struct damos= *s, +static unsigned long damon_pa_pageout(struct damon_region *r, + unsigned long addr_unit, struct damos *s, unsigned long *sz_filter_passed) { - unsigned long addr, applied; + phys_addr_t addr, applied; LIST_HEAD(folio_list); bool install_young_filter =3D true; struct damos_filter *filter; @@ -159,8 +160,8 @@ static unsigned long damon_pa_pageout(struct damon_regi= on *r, struct damos *s, damos_add_filter(s, filter); } =20 - addr =3D r->ar.start; - while (addr < r->ar.end) { + addr =3D damon_pa_phys_addr(r->ar.start, addr_unit); + while (addr < damon_pa_phys_addr(r->ar.end, addr_unit)) { folio =3D damon_get_folio(PHYS_PFN(addr)); if (damon_pa_invalid_damos_folio(folio, s)) { addr +=3D PAGE_SIZE; @@ -170,7 +171,7 @@ static unsigned long damon_pa_pageout(struct damon_regi= on *r, struct damos *s, if (damos_pa_filter_out(s, folio)) goto put_folio; else - *sz_filter_passed +=3D folio_size(folio); + *sz_filter_passed +=3D folio_size(folio) / addr_unit; =20 folio_clear_referenced(folio); folio_test_clear_young(folio); @@ -189,7 +190,7 @@ static unsigned long damon_pa_pageout(struct damon_regi= on *r, struct damos *s, applied =3D reclaim_pages(&folio_list); cond_resched(); s->last_applied =3D folio; - return applied * PAGE_SIZE; + return applied * PAGE_SIZE / addr_unit; } =20 static inline unsigned long damon_pa_mark_accessed_or_deactivate( @@ -302,9 +303,11 @@ static unsigned long damon_pa_apply_scheme(struct damo= n_ctx *ctx, struct damon_target *t, struct damon_region *r, struct damos *scheme, unsigned long *sz_filter_passed) { + unsigned long aunit =3D ctx->addr_unit; + switch (scheme->action) { case DAMOS_PAGEOUT: - return damon_pa_pageout(r, scheme, sz_filter_passed); + return damon_pa_pageout(r, aunit, scheme, sz_filter_passed); case DAMOS_LRU_PRIO: return damon_pa_mark_accessed(r, scheme, sz_filter_passed); case DAMOS_LRU_DEPRIO: --=20 2.43.0