From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=115.124.30.131 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794481990; b=5A9KUzHtMhdTJu4lLhw/iynPA4KJGmCVfj7ZEOPMBq6rbgNHp83EPsdq0f1ntN3W+emq t8/UqZa5TrzQGVHPpBPIJot/H+/3rSVBpCR9USXTJksI8Js6bQ0k5SPmk0Ou/HTxo3Bek qbly2d3QOnFX+9+9g+RbjAoDwA625vGNrhI8qPHPp/BpDNgEgV8TwmjYhDlPPsO4KJOYp uTVL6dRQ1pvBI3hXNDPzNVJ4eAf78WUueSWpZXx7n8kmIIbucBHaWpHEb/00TrybgqiJp 2f9GqkpvVqKNt8gwjaGw+bWE8Zx9N1kZ7mv3A0Zd119hroLA56WCoYHd2JSE/N95v3g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794481990; h=DMARC-Filter:DKIM-Signature:X-Alimail-AntiSpam:Received:From:To:Cc: Subject:Date:Message-ID:X-Mailer:MIME-Version: Content-Transfer-Encoding; bh=O1ylWmglCLFhGDN08Z3QqHQULQGJeVg5Vw4Vd/T+a9I=; b=u4eyuA2FSe6Dy1moKfKxvH7MXVOGG4O3yYbT+xP0HJ9IsWMxpwPhvsM1eF23aVxtIjXS PcYD4EwyWGpT6iwqFW2NffICM4ZRYaGZjAXBagROu9DNBfEaQF6majwUsHl+cG1BX7ZpY B/nGHRiHG4un5O66OcjtjnGBBbbSBtwvSQWZzYMnD3kesJkSMXEZwgQQJ1vb9y3BwxPFy hzdVvdUHdThGHxJ0tpkATXQs6oLuSVBVg+zggnYGjt1XR6Guguao6QRi9wlqKgo4ZwIvG YGQZTtwTidVqvJQwh4d7as1qj6hywW9f/LFt/UvOr+cSwlR0mtwApykywlL2ZRDjExQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass header.d=linux.alibaba.com header.i=@linux.alibaba.com header.a=rsa-sha256 header.s=default header.b=FM7nupIb; arc=none smtp.remote-ip=115.124.30.131 Received: from out30-131.freemail.mail.aliyun.com (out30-131.freemail.mail.aliyun.com [115.124.30.131]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2B6DB606A31C for ; Thu, 12 Nov 2026 11:13:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 2B6DB606A31C Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.a=rsa-sha256 header.s=default header.b=FM7nupIb DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1794481980; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=O1ylWmglCLFhGDN08Z3QqHQULQGJeVg5Vw4Vd/T+a9I=; b=FM7nupIbxP4U6L7OXvL1srusoEdjIc6zCJBefwyQtZMYCShBW1UWdF/kb+eUTWjF0CbCHQnUEOxKm0mcftHxxV1zkoqInlPJ+zrzxuntMejRcXFuzq+y0c/BIBWeSEI0pR9o3Piyd94Z5IM6FfSrwXqCzuRPhHl8h1k68xZQTCg= X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R211e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037033178;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=15;SR=0;TI=SMTPD_---0XEblyLP_1794481979; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0XEblyLP_1794481979 cluster:ay36) by smtp.aliyun-inc.com; Thu, 12 Nov 2026 19:12:59 +0800 From: Baolin Wang To: akpm@linux-foundation.org, david@kernel.org, hannes@cmpxchg.org, kasong@tencent.com Cc: baohua@kernel.org, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, baoquan.he@linux.dev, qi.zheng@linux.dev, shakeel.butt@linux.dev, mhocko@kernel.org, baolin.wang@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH] mm: mglru: use pte_table_clamped_end() helper to calculate the end Date: Thu, 12 Nov 2026 19:12:39 +0800 Message-ID: X-Mailer: git-send-email 2.43.5 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Use pte_table_clamped_end() to clamp the range to the PTE table and VMA boundaries when batch-checking young flags, making the code more readable. No functional changes intended. Signed-off-by: Baolin Wang --- Based on mm/core.git for-next branch. Note that this was found while reviewing David's series: https://lore.kernel.org/all/c31cc8a0-c098-4784-a843-f13f51914094@linux.alibaba.com/ --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 5495d9be90e8..804d4188e7b4 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -4470,7 +4470,7 @@ bool lru_gen_look_around(struct page_vma_mapped_walk *pvmw, unsigned int nr) walk = current->reclaim_state ? current->reclaim_state->mm_walk : NULL; start = max(addr & PMD_MASK, vma->vm_start); - end = min(addr | ~PMD_MASK, vma->vm_end - 1) + 1; + end = pte_table_clamped_end(addr, vma->vm_end); if (end - start == PAGE_SIZE) return true; -- 2.47.3