From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A739ECFD313 for ; Mon, 24 Nov 2025 00:46:21 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4dF6Zg6wRQz2yvP; Mon, 24 Nov 2025 11:46:19 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2600:3c0a:e001:78e:0:1991:8:25" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1763945179; cv=none; b=jEZoJnPX8IEyyAxF7fl0GR8hVDPIR2+Vavsry1j8cssYFeL9VPDARSpAHOZB8smTAALY+iGqsihzYQOPoQsUX4YhBIzD2Hy25gRYA60DfOTrQVGdBu397qiroaadgMT+fzv9Ck0/b9Sgx4o+YTZf8dQT/zVxHN6qb72NHqlsVOioaF3aTFMSGx9A6mdEi8ng8CotFquLvKt/pnQhBbmZSMydsWyAG8Aqp4v9V5vuADzOS6v4jdMljQ7UidDAO4HiNYBm2walW/AXuNcc83wereCxz48w/cfFBP3Xwh2mzjxcPFBjfknLIpQxxWf9h9OFcsF5tV+mG+c0+fOhaBR2Tg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1763945179; c=relaxed/relaxed; bh=f5CmlQcW+roGkv7AqTyRVJzhiGHghnuqi1k9mhdTZWE=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=Z7YsKUgKDhf96GbKuq1fS6cDbyOIpJBgwyDznDjSjNmyYnumNXEDh4V6JkM6ZtUxmgIbWoVvxrW9KQQjDnSNC9OyK0hV0K/RTo/qGT1hqDbBbtFEr7zlQGq3V1OGgSKkdUY9RDKuxJYX+uynUcn+Op99uR3+PAx9CMQS3Hi3frLt32xrbDcr2YEwU4c1z7j/fTJESvZixevuKONUk3eWZ/USN6RcDbN6sHICf3yDFXWFeAPxLKF8qtg7b+iXWq2G3n7hZkqQGQEg8bcKoAY3WvVlwkS4Oq/cWRhKKDfaUkJ6ZDV26kYBjsE4RBk9XDngz3Tr194f6iKI6UldvccB5g== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=mp9eRl6N; dkim-atps=neutral; spf=pass (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=chao@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=mp9eRl6N; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=chao@kernel.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [IPv6:2600:3c0a:e001:78e:0:1991:8:25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4dF6Zg301Lz2xS2 for ; Mon, 24 Nov 2025 11:46:19 +1100 (AEDT) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 360BE42BC6; Mon, 24 Nov 2025 00:46:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83463C113D0; Mon, 24 Nov 2025 00:46:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763945177; bh=vZ69h7RxiGdx/8SDpLCvIaJJ4DKYtE3ElxMBvbTSKCM=; h=Date:Cc:Subject:To:References:From:In-Reply-To:From; b=mp9eRl6Nds74672lMNP123RvhPEDOvEUQGDsTyzzsIa3LEJPA5pUMIQt4EBVQN1ol QcB5gS7F5OBmNnzsONtdd0k+egqWJxovs1qpfnSaQVE0OPHXuQlfBMiJaKmu6VK//T t0wzKd4XBJ2tY7+B0F3NvDUXmXYxtgXsS+PL8aV4s6GRCGJ8XYpAVZRLE5B6oR+muf vRUA7ImaRuxHLKb+RNrru6shO2UEz2Jeez7+9lTdxjt8V7ijz8tBBjN4Wyjn2djKPL Smx9HOLhe+mNW8+PtwwEbrcbUJ8NtdzWI23iUzOJ5m1WU0JcprLD6w/N1tlKkpSTOp umRyN+Ef6VSEw== Message-ID: Date: Mon, 24 Nov 2025 08:46:20 +0800 X-Mailing-List: linux-erofs@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: chao@kernel.org, LKML , Christian Brauner , Jan Kara , Sheng Yong Subject: Re: [PATCH v2] erofs: limit the level of fs stacking for file-backed mounts To: Gao Xiang , linux-erofs@lists.ozlabs.org References: <20251121134647.104354-1-hsiangkao@linux.alibaba.com> <20251122062332.1408580-1-hsiangkao@linux.alibaba.com> Content-Language: en-US From: Chao Yu In-Reply-To: <20251122062332.1408580-1-hsiangkao@linux.alibaba.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 11/22/2025 2:23 PM, Gao Xiang wrote: > Otherwise, it could cause potential kernel stack overflow (e.g., EROFS > mounting itself). > > Reviewed-by: Sheng Yong > Fixes: fb176750266a ("erofs: add file-backed mount support") > Signed-off-by: Gao Xiang Reviewed-by: Chao Yu Thanks,