From nobody Sat Oct 4 06:37:45 2025 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) (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 8730C2236E1 for ; Wed, 20 Aug 2025 08:20:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.188 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755678011; cv=none; b=eEOgb8farioiPC54FYxceI2KVQSeMFbv47ETs6LBGvjMrpkZn+A4ej/XCNKBd0pp9RFnP5RtC2lsTNPU/RuyZSalZIL5djUeO1m/Y9eW7DN79YsPgsBBQ/aQBeIQ+9op6U3DjBIVyjhRRKg0CYXhDR7bEV05oeFr24wT+QqNKlg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755678011; c=relaxed/simple; bh=79JhY6zpFGgcnn4/fHDjc6TTztS7wdWcXsEDzoo8+uw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=XiRv8eR8wuQsTky+9xz2BoCQSQenEM6E1WS91GcRlzP/fYxGoiHjiZbDoDqVOe26yLvLIAeo+50Vj/HJ9vDeIUjMfqmciP2BTQlRNTTpP9cjBWM4oGQka6Yd0xLYVwMmSBDCcd5I0gu453Hcs5rcZw7/9nkkgnsLNxKztiOcDWQ= 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=45.249.212.188 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 szxga02-in.huawei.com (SkyGuard) with ESMTP id 4c6K9R1gXHztTL2; Wed, 20 Aug 2025 16:19:07 +0800 (CST) Received: from dggpemf200018.china.huawei.com (unknown [7.185.36.31]) by mail.maildlp.com (Postfix) with ESMTPS id 2FBDE18048F; Wed, 20 Aug 2025 16:20:06 +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; Wed, 20 Aug 2025 16:20:05 +0800 From: Quanmin Yan To: CC: , , , , , , Subject: [RFC PATCH mm-next v2 05/12] mm/damon/paddr: support addr_unit for MIGRATE_{HOT,COLD} Date: Wed, 20 Aug 2025 16:06:15 +0800 Message-ID: <20250820080623.3799131-6-yanquanmin1@huawei.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250820080623.3799131-1-yanquanmin1@huawei.com> References: <20250820080623.3799131-1-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: kwepems200002.china.huawei.com (7.221.188.68) 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_MIGRATE_HOT and DAMOS_MIGRATE_COLD action handling from the DAMOS operation implementation for the physical address space. Signed-off-by: SeongJae Park Signed-off-by: Quanmin Yan --- mm/damon/paddr.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index ed71dd0bf80e..0305e59818da 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -243,15 +243,16 @@ static unsigned long damon_pa_deactivate_pages(struct= damon_region *r, sz_filter_passed); } =20 -static unsigned long damon_pa_migrate(struct damon_region *r, struct damos= *s, +static unsigned long damon_pa_migrate(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); struct folio *folio; =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; @@ -261,7 +262,7 @@ static unsigned long damon_pa_migrate(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 if (!folio_isolate_lru(folio)) goto put_folio; @@ -273,7 +274,7 @@ static unsigned long damon_pa_migrate(struct damon_regi= on *r, struct damos *s, applied =3D damon_migrate_pages(&folio_list, s->target_nid); cond_resched(); s->last_applied =3D folio; - return applied * PAGE_SIZE; + return applied * PAGE_SIZE / addr_unit; } =20 static unsigned long damon_pa_stat(struct damon_region *r, struct damos *s, @@ -319,7 +320,7 @@ static unsigned long damon_pa_apply_scheme(struct damon= _ctx *ctx, sz_filter_passed); case DAMOS_MIGRATE_HOT: case DAMOS_MIGRATE_COLD: - return damon_pa_migrate(r, scheme, sz_filter_passed); + return damon_pa_migrate(r, aunit, scheme, sz_filter_passed); case DAMOS_STAT: return damon_pa_stat(r, scheme, sz_filter_passed); default: --=20 2.43.0