From nobody Sat Apr 4 03:19:47 2026 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 C5D9C3358A7; Fri, 20 Mar 2026 22:13:52 +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=1774044832; cv=none; b=R9riHJlsxO/QRK7JbhgVMMtzoKA/DHrHVxUeNhDbGxOw66pLJ7j/TK7gPdpVI4bJFKUmKeqe0W3ALS9p5WGp5WFoSJso65RpfLs0sGQNtH7vdU9s2Atw2PGmefAeDidPBOk/PvXelS6aRZKyaAybH76NfdlGM9ti2ROPfoIUD2Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774044832; c=relaxed/simple; bh=XBR2EPoKpXeNjq1txkLBTh/DgkCJHtoC1PlnginQxtA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=N5XsaxTEW5H7FruIhvRf8p9ruUF/0GiTPKGzHfe3Fmj/FLs7hYC2yiDBNWF0/i/A4n0x5rUNL8mxm99ni+NM2lMtHsvBBYG08Uh8aNOWqya0UsC8g9x3/pvM8JQxGzJBVnqpDyLd8MzZjpthlP7AgIoTeMyyBmtCjOVrL/l3YPU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tInuY984; 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="tInuY984" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CECA5C2BC87; Fri, 20 Mar 2026 22:13:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774044832; bh=XBR2EPoKpXeNjq1txkLBTh/DgkCJHtoC1PlnginQxtA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=tInuY984yzdIEuaZJXpPPAPu/jx6o88MxmPXqoEhhmH9XAKSJMbP9JmVw7KDYMdYI cYFzrC3mXShUxMELrJRAOb8iFHCYRFYnMXADOypUly2tPI5LhdRJAlx6Y7vIsodwEE Tb8WTg9dueCXRj24fln2u12nVVjS4oL3Ny2O8BgKFv5WAfttURT/QkCV02wu1LukEt +WqU5eLPOYBtokHGt2yPjG/XvcY29bKMFzXiTW0vweT3cJdrcDYhDTgUwEXHa4yEL4 Ov9DFUt9eHboVve5zoTrH8Bv9mnM+yD+kzQ6+YJzB4D+h8DGu8XFoU9yIoZlUTet3N 5V0hxSVsZnYcA== From: "David Hildenbrand (Arm)" Date: Fri, 20 Mar 2026 23:13:34 +0100 Subject: [PATCH v2 02/15] mm/memory_hotplug: remove for_each_valid_pfn() usage Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260320-sparsemem_cleanups-v2-2-096addc8800d@kernel.org> References: <20260320-sparsemem_cleanups-v2-0-096addc8800d@kernel.org> In-Reply-To: <20260320-sparsemem_cleanups-v2-0-096addc8800d@kernel.org> To: linux-kernel@vger.kernel.org Cc: Andrew Morton , Oscar Salvador , Axel Rasmussen , Yuanchu Xie , Wei Xu , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Sidhartha Kumar , linux-mm@kvack.org, linux-cxl@vger.kernel.org, linux-riscv@lists.infradead.org, "David Hildenbrand (Arm)" X-Mailer: b4 0.13.0 When offlining memory, we know that the memory range has no holes. Checking for valid pfns is not required. Reviewed-by: Lorenzo Stoakes (Oracle) Reviewed-by: Mike Rapoport (Microsoft) Signed-off-by: David Hildenbrand (Arm) --- mm/memory_hotplug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 969cd7ddf68f..0c26b1f2be6e 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1746,7 +1746,7 @@ static int scan_movable_pages(unsigned long start, un= signed long end, { unsigned long pfn; =20 - for_each_valid_pfn(pfn, start, end) { + for (pfn =3D start; pfn < end; pfn++) { unsigned long nr_pages; struct page *page; struct folio *folio; @@ -1796,7 +1796,7 @@ static void do_migrate_range(unsigned long start_pfn,= unsigned long end_pfn) static DEFINE_RATELIMIT_STATE(migrate_rs, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST); =20 - for_each_valid_pfn(pfn, start_pfn, end_pfn) { + for (pfn =3D start_pfn; pfn < end_pfn; pfn++) { struct page *page; =20 page =3D pfn_to_page(pfn); --=20 2.43.0