From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-183.mta1.migadu.com (out-183.mta1.migadu.com [95.215.58.183]) (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 44775210EE for ; Thu, 29 Aug 2024 07:22:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.183 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724916132; cv=none; b=ID7fsPKON8GXDio3jKxoSJsKTdObN+V1WlpPdFkSTcC8LvkxvtGmZ1dw7b6fMmyRXM9HVGcBfBkUTEF/k341QfnW9kLiJfRCLtLCpVnH6ueyzgV8+UIrqCT4QLn+j5NJUZBQq29z/Ad+aXRHAn704qArW1IKfAKzN52Xk1gI0kM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724916132; c=relaxed/simple; bh=1zBRMlPjDgBVivgHAreopNXvVKzKab2jeoxF7VBexfY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=g4nfJfHd2W1AOCjqPs5tQFgjFVZL/dMHIZDJbRfBxpgmjBbSr2sgm5it5NCnzc8rR/n8pjfJmG1eXp1wygetDiQngS2RlxNkZB9OLVO/IZ70HTo/bRN1HkXceEeWNSXWvJ54oUDVKg66hm4Q6ysqDN+UBIrThf4viTlZhbf1EZs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=D0c5SZwI; arc=none smtp.client-ip=95.215.58.183 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="D0c5SZwI" Message-ID: <732c3fd3-3d04-456b-8fd7-a9fa438d21aa@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1724916123; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1zBRMlPjDgBVivgHAreopNXvVKzKab2jeoxF7VBexfY=; b=D0c5SZwIWdQNc7+YnMxsvzEUvr2k836FFmLmSHquTRnDq/LhuvvyZc2N3eHo18KznHIrk6 Y/WrUpEdegapBasxAgsf8Oxt7mtbkrLdJy14FOhkfZQboK1oCQ0SnOHrvjt44okjcpK+Qv eiuEie5njUjVKm0tZOOO6qnmEuBt+pU= Date: Thu, 29 Aug 2024 15:21:53 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH v2 03/14] powerpc: assert_pte_locked() use pte_offset_map_ro_nolock() To: Qi Zheng , david@redhat.com, hughd@google.com, willy@infradead.org, 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 References: <89ae94f722996b4ee7ef20d44cd7f5e2f0495c47.1724310149.git.zhengqi.arch@bytedance.com> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Muchun Song In-Reply-To: <89ae94f722996b4ee7ef20d44cd7f5e2f0495c47.1724310149.git.zhengqi.arch@bytedance.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT On 2024/8/22 15:13, Qi Zheng wrote: > In assert_pte_locked(), we just get the ptl and assert if it was already > held, so convert it to using pte_offset_map_ro_nolock(). > > Signed-off-by: Qi Zheng Reviewed-by: Muchun Song