From nobody Tue Feb 10 02:04:57 2026 Received: from mail-qk1-f169.google.com (mail-qk1-f169.google.com [209.85.222.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2A02718786B for ; Thu, 26 Sep 2024 06:47:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.169 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727333233; cv=none; b=lHbX/6NgX4MlAG2ynZWOADgQ2eXC6nOJw1nSjdENHkE5BGvYo3oLmaKVZ+FZVBtwP+Rovx8r2Ehvt6ri5p6wc6Ee3Anv4mC8xfZ5SNPW+I490VbbgD6+Czped4di6tVh0YAgaaLxzOoEDl1zO0w1ZSR5YwfcbjNRaqgmf81+trA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727333233; c=relaxed/simple; bh=CYi+EZMylLlMSCqw/uJB5X9IiL/Hx4QgVrtaCgCZ208=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=W3pTBEKNfgMJVVaV5NSOy9shIzb6iHSmnvWwzwLTThH6eWhnjPmW3ZZZ9wdH/MJ18LeXKdIrqqFPxO9Ve20XklSGesHqkJGq6cXtEyY4cxfBpJm+SN92zOXf4UrY8ofXW5u0FtflObwbOMlltqtsYeQxv61q5pMTZheAv+7cpps= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com; spf=pass smtp.mailfrom=bytedance.com; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b=LBOn9E4E; arc=none smtp.client-ip=209.85.222.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bytedance.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b="LBOn9E4E" Received: by mail-qk1-f169.google.com with SMTP id af79cd13be357-7a99eee4a5bso52392585a.0 for ; Wed, 25 Sep 2024 23:47:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1727333231; x=1727938031; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=BmENsM1LVZMrc0W501TyzYIERT8c75Mhan1AJ9vs73Q=; b=LBOn9E4EJdvphOHdtKRRdaxL3J8x3ZkXBrQT9wK0oPsWM2/bBHwWpBgGemTXH+iE+u 2EYftdyOgDODyl8YZS5t3Nlr45b7W+mbAcBZyry5B+1NmULZSKV2EbNTRXCQTTxw9IQ3 2q5bWuX1DNGv3x0XIrlI1yizowsjfl7Mso95qjnZakdtv/MSanKHjij718OjfP3f/P7y 2Q9jI+VeOABoEosklEjAxcvPQizzfIayhk99ighYb7qfb+Th+8DTcNwMHLOnYR2GYH2M qpmq3bf4fHc/aKibsAR2DkZfnlTa5n91N4TcXHmqxll+fEfW4P4ST/pIYArZBaytfo9q YR6w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727333231; x=1727938031; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=BmENsM1LVZMrc0W501TyzYIERT8c75Mhan1AJ9vs73Q=; b=aYlrqfQ3XRsEMzb600YmK3RDLrioQzptC2Mu4z9K0Vng5leB4ZCthSEPZfZpbffNbO 1HK4X1YVoMTKk65gKkUkdpiw9JLYhZIGDfsHe0m+J+mNfl2bK7q2DBQH6bKV4STF7bAd /RLllLHzXAJcZzMrsr8bZ+lnxJkgd7VgCwBxEyoez6yCscoxHylnGFDdjqEL0+daTovb 0ccPBnkB2odYKvTJNlPoUGD/opooEp6VoGvm4bbs8fkIkhBuRlMGJ98/Ys9SgZbbRxwH AKisSUj2eFEYFBWahmmx63o5MEGYE62Qx7NuXQ+SPdWoD8OWtA6/krhpYMpCZRn1Ihwd DQaA== X-Gm-Message-State: AOJu0YwNjwsqOvvf8Q1ykkEYJfYjvEY4Hh/pn0V9mekcZ7g4cO4GoE6v oWF4/uK8mx6LSQ85WcSPSaIh0XHYrIG9v5oOi/69LrJlEYLdoufCF2tyjQ1iWEQ= X-Google-Smtp-Source: AGHT+IF3jq8XAx4d8MvdG//ydygdKBfb8RG21eWCHGRQrOC65QRa0E/gKmvca15+75cy4x5ki2/uwA== X-Received: by 2002:ac8:5914:0:b0:458:fb8:9dc3 with SMTP id d75a77b69052e-45b5def1dadmr61649591cf.25.1727333230912; Wed, 25 Sep 2024 23:47:10 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([203.208.167.150]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-45b5257ff1esm23024611cf.38.2024.09.25.23.47.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Sep 2024 23:47:10 -0700 (PDT) From: Qi Zheng To: david@redhat.com, hughd@google.com, willy@infradead.org, muchun.song@linux.dev, vbabka@kernel.org, akpm@linux-foundation.org, rppt@kernel.org, vishal.moola@gmail.com, peterx@redhat.com, ryan.roberts@arm.com, christophe.leroy2@cs-soprasteria.com Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, Qi Zheng Subject: [PATCH v5 03/13] mm: filemap: filemap_fault_recheck_pte_none() use pte_offset_map_ro_nolock() Date: Thu, 26 Sep 2024 14:46:16 +0800 Message-Id: <9f7cbbaa772385ced1b8931b67a8b9d246c9b82d.1727332572.git.zhengqi.arch@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: References: 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" In filemap_fault_recheck_pte_none(), we just do pte_none() check, so convert it to using pte_offset_map_ro_nolock(). Signed-off-by: Qi Zheng Acked-by: David Hildenbrand Reviewed-by: Muchun Song --- mm/filemap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index 3e46ca45e13dc..6c6ff8722550f 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -3271,8 +3271,8 @@ static vm_fault_t filemap_fault_recheck_pte_none(stru= ct vm_fault *vmf) if (!(vmf->flags & FAULT_FLAG_ORIG_PTE_VALID)) return 0; =20 - ptep =3D pte_offset_map_nolock(vma->vm_mm, vmf->pmd, vmf->address, - &vmf->ptl); + ptep =3D pte_offset_map_ro_nolock(vma->vm_mm, vmf->pmd, vmf->address, + &vmf->ptl); if (unlikely(!ptep)) return VM_FAULT_NOPAGE; =20 --=20 2.20.1