From nobody Mon Feb 9 09:57:17 2026 Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) (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 3040F74BF5 for ; Tue, 24 Sep 2024 06:10:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.181 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727158249; cv=none; b=ht8g1WatZGgEg4vVoyHppBOMAZQ+TPyg6QaoOAy3R1ZX11UzEKqCpYZanIisR2O+XVLjguwRd1BluO6vW+RXZjjJey+oOZpdccN/mEeVUt6VUkNSP2OYAsmCx6JZjWyopp2yyYMk4UlD1hXK58VQKxxyCVoUCf0ZV0rFSLYl4Q0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727158249; c=relaxed/simple; bh=CYi+EZMylLlMSCqw/uJB5X9IiL/Hx4QgVrtaCgCZ208=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=qGTMlibivGixI6SIdmi3JoIz9cdxZ51Z7yz4G74/TfMdwPNrPNx5J59i7S5vW5ZFRHUXrvFAEJJoHIziL0PbVgHzNjO556oB46xfWt/2lao6/dvk9cNlVzqVsebiysO6OnMVHN6YoY4T3mCQP6Bav+HBAQGCv9WN7/4Vf7AtT8Q= 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=Oec2x2KV; arc=none smtp.client-ip=209.85.214.181 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="Oec2x2KV" Received: by mail-pl1-f181.google.com with SMTP id d9443c01a7336-2068acc8b98so47504115ad.3 for ; Mon, 23 Sep 2024 23:10:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1727158247; x=1727763047; 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=Oec2x2KVXW3dfQVoamAzAS9d3PTvzSypv30M057Vd9KG5coCvh5bn/F+f8LqriNumk sibw4pjPGETHMb9WAn4Je73OJRORhF23XghApfuJC9RhiffzjbTQz3sepwKGhOM3U3BM jfHkrg032omPxzvf3k/vtqBDmf8lYsYKedkjscyKXZAyaH31hkGdKEpq3WSWWLqvTcrD orVzs2H33VVFsxrEHHGPP1SM3j6E9FD4QCf/NMksZmQl6X4DhYLAiGsq1JiMqatLLDKI y7RJk9vrPdjYX+sKaaPeXwxU7Y9aseUq5V2sqcgK5Q5Xhz63ZqSu/+TzoVI89EN3rdwp da3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727158247; x=1727763047; 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=f3Ok1pn26Z1CNbrb54zSBW9yXoymywnPj0J4KM6Xiu+FAtTePnhIMmR800EJNafMkk r8LQHL1mwSm83F2eiZUsVXtCsHDYssI9ee9G7KM0HtcuJsviV+ge8MAvCs2LJR5DcxVz MxllE9hcioKj/9koinqGAGEWDi5n3ZHg2ef7U89xT4eKA4NksnsabgDCdlgca743jWbt PzWPs828vHWl++4+GqKxFQsU2iLFNR4gV8ke278MxwwoqVLSlw+D6FbOfQZT8D6YJVAT MC0BWpXilQT4fxtj1VBQTJTaeWk01TpMK3IUBFUErj5PtLb5Mve1HY3+mU8h9Eo/fMyu OuQw== X-Gm-Message-State: AOJu0YzU3MjTDrHbIyyepVKsJpkHW1SfhzpPzNklMqsCKH5lnyminhVX C2XUOzuE4e/dFj7FbgUeStESLTRy1+9M7zR/nRCDaK4ke5WhtZ9v74p0oTp/gF4= X-Google-Smtp-Source: AGHT+IGm87aqttqV2Aef0OLuq60VY3Mp4w41J7dgMXq2Y+1L52786e2U6HUOab2ZHlW+VZaRsZgruQ== X-Received: by 2002:a17:903:22c5:b0:205:6f2d:adf7 with SMTP id d9443c01a7336-208d83a8387mr177369015ad.21.1727158246651; Mon, 23 Sep 2024 23:10:46 -0700 (PDT) Received: from C02DW0BEMD6R.bytedance.net ([63.216.146.178]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20af17229c9sm4344885ad.85.2024.09.23.23.10.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Sep 2024 23:10:46 -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 v4 03/13] mm: filemap: filemap_fault_recheck_pte_none() use pte_offset_map_ro_nolock() Date: Tue, 24 Sep 2024 14:09:55 +0800 Message-Id: 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