From nobody Fri Oct 3 16:38:21 2025 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 E6D0E340D90; Thu, 28 Aug 2025 17:12:53 +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=1756401174; cv=none; b=LiiKm4Ufmb0vC8NCI3mjCYWVTscmYBG7KeR+uE8K6qT5AAVoRjESj6EbJt+DlqFIn33Hk5AsR/AvrKdLeLzzbKmXc8cavNWxT+fvor2zyPC9hBR/SuFOlJNdwQ95eK3Q8rge3TcLJa6+9663GfcRFlx2vvqpJJuAFnxwSub7fds= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756401174; c=relaxed/simple; bh=s/ZtUKWoi9HlBtotMtbYAXHGNUrzkyLE//5a+5BjQyc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=djPZ/xNVPVJ8dDEGjCiYCrosT8eDkbbXTXx73m0H/qlXgNeOPoadiW2xufA8iRNQ/H7XsgJLnSlp3Z/lKgzWBy/MAQxNLmL6VIc8vG/fLzZcrYMXYOMkfPn6hRUQvqDwKht+Ue+Jz5LkmA7jN2n7+jp4l/YwmRcAZzdieoUf8SY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fmFEKtsF; 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="fmFEKtsF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A0EF0C4CEF4; Thu, 28 Aug 2025 17:12:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756401173; bh=s/ZtUKWoi9HlBtotMtbYAXHGNUrzkyLE//5a+5BjQyc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fmFEKtsF9NbDuJufKLJyMTnrxl4FEig2ZS4T+ULHygt3c8X7mDRAtCE5JAqcculiU kyUE6iiiyi6fCLo3tx9CD3MPDkgiMihYeEpgqr/aRtpxbxs9TPz6SdGY4eB0I057BY ZZBB3paIFdzOnC6yw1xnBAC6YBGb82+uCLxehk28tncossRjUA+r1qA4vpHB2YnNnF oIa4cQxY78apjx6gQyTcgbPJFIB6Q0kM52+yTXLn7a+i8FVY0cLh3/OBhxQxc0iEVX R5UKPDu38pyq5cY6Yw8gitFjkd1t/11AOrI3kOt1a7aGgOVz3z8oAUGUX7eSycSlMx Jym+oTukm3YaQ== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , Quanmin Yan , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org, wangkefeng.wang@huawei.com, zuoze1@huawei.com Subject: [PATCH v3 06/11] mm/damon/paddr: support addr_unit for DAMOS_STAT Date: Thu, 28 Aug 2025 10:12:37 -0700 Message-Id: <20250828171242.59810-7-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250828171242.59810-1-sj@kernel.org> References: <20250828171242.59810-1-sj@kernel.org> 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 Content-Type: text/plain; charset="utf-8" Add support of addr_unit for DAMOS_STAT 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 --- mm/damon/paddr.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index 0a122a8a9f1c..07a8aead439e 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -290,17 +290,18 @@ static unsigned long damon_pa_migrate(struct damon_re= gion *r, return damon_pa_core_addr(applied * PAGE_SIZE, addr_unit); } =20 -static unsigned long damon_pa_stat(struct damon_region *r, struct damos *s, +static unsigned long damon_pa_stat(struct damon_region *r, + unsigned long addr_unit, struct damos *s, unsigned long *sz_filter_passed) { - unsigned long addr; + phys_addr_t addr; struct folio *folio; =20 if (!damos_ops_has_filter(s)) return 0; =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; @@ -308,7 +309,7 @@ static unsigned long damon_pa_stat(struct damon_region = *r, struct damos *s, } =20 if (!damos_pa_filter_out(s, folio)) - *sz_filter_passed +=3D folio_size(folio); + *sz_filter_passed +=3D folio_size(folio) / addr_unit; addr +=3D folio_size(folio); folio_put(folio); } @@ -335,7 +336,7 @@ static unsigned long damon_pa_apply_scheme(struct damon= _ctx *ctx, case DAMOS_MIGRATE_COLD: return damon_pa_migrate(r, aunit, scheme, sz_filter_passed); case DAMOS_STAT: - return damon_pa_stat(r, scheme, sz_filter_passed); + return damon_pa_stat(r, aunit, scheme, sz_filter_passed); default: /* DAMOS actions that not yet supported by 'paddr'. */ break; --=20 2.39.5