From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 0551823817E for ; Sat, 10 Jan 2026 05:24:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768022647; cv=none; b=OGyXWgrnD//nOK3KHk265FxzyQGReJXiLjam2zzjGZkLFqViHO+kcA7IP/j3u96cbVI/njE1Tp5zQknfaHY1vPTt+O3c1fE1sFMx7sMgVu5+bYY1n6n+aeDJkf9uwVIeKRsWCliqUkqk38tB4Abq2GSsLfNzWA1ckL6zGa/L4dw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768022647; c=relaxed/simple; bh=GWbyWFYrmb4EWy/l9bzQ5vz/debNK3Oc7mF5MOtNXCE=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=RKGkUaOlpViB2SreTwq3pKZKys97Z67P93s28TQ++OpN4wKzw6UwNGKLbcMOPZJ7Hy3N77I/qznk2jqEq6/CoUVdSo045zT/eT7ZmjmNZXTZIu/74LkVyHdE+OJC7ZjbVazUhTOGUNnFl+fxJo6jXzsLrkow6iLVA9+QobX9AII= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=N17uFM2U; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="N17uFM2U" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63143C4CEF1; Sat, 10 Jan 2026 05:24:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768022646; bh=GWbyWFYrmb4EWy/l9bzQ5vz/debNK3Oc7mF5MOtNXCE=; h=Date:From:To:Cc:Subject:From; b=N17uFM2UgxUZA7FSErYEX+ycdhudIqu2CeiVZkd8ehQoFM0OXj+Z/yjk2c5Fq5a5a qffzcE1QTf4fRWTgWcP1oeWT/KCqu+/jETkqrJoxe/cBuYRJXSRDcQXPsF4LBSZGXV BCiiSgZKFEfN59u0ttvRi5o5lOu9HbK3RULkDii0jNnd/+0M6bRpvoW2XGfrqKH+69 FMpQL57fyA8vGQBWtM/DZKpIBdJYIiC24r2dOIdeF88sljuCbMo0jGvJuAg3GTGCnq AaiVCnukEXFBHUl+5gm/YPF6/ypC8w8oRgcmWtsdVBcImXZityrgEk86Q0Nc2YEsZh L3P6/9ZWniiFg== Date: Sat, 10 Jan 2026 13:23:56 +0800 From: Gao Xiang To: Linus Torvalds Cc: linux-erofs@lists.ozlabs.org, LKML , Amir Goldstein , Alexander Larsson , Dusty Mabe , Chao Yu , Sheng Yong , Zhiguo Niu , Christian Brauner , Miklos Szeredi Subject: [GIT PULL] erofs fix for 6.19-rc5 Message-ID: Mail-Followup-To: Linus Torvalds , linux-erofs@lists.ozlabs.org, LKML , Amir Goldstein , Alexander Larsson , Dusty Mabe , Chao Yu , Sheng Yong , Zhiguo Niu , Christian Brauner , Miklos Szeredi Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Hi Linus, Could you consider this urgent fix for 6.19-rc5? Actually upstream commit d53cd891f0e4 ("erofs: limit the level of fs stacking for file-backed mounts") causes composefs regressions since EROFS + ovl^2 cannot be mounted properly anymore and we all agree to land this band-aid fix as the first step. The more backgound details are shown in the commit message. Thanks, Gao Xiang The following changes since commit f8f9c1f4d0c7a64600e2ca312dec824a0bc2f1da: Linux 6.19-rc3 (2025-12-28 13:24:26 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git tags/erofs-for-6.19-rc5-fixes for you to fetch changes up to 072a7c7cdbea4f91df854ee2bb216256cd619f2a: erofs: don't bother with s_stack_depth increasing for now (2026-01-10 13:01:15 +0800) ---------------------------------------------------------------- Change since last update: - Don't bother with s_stack_depth increasing to band-aid regressions in some composefs mount setups (EROFS + ovl^2) ---------------------------------------------------------------- Gao Xiang (1): erofs: don't bother with s_stack_depth increasing for now fs/erofs/super.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-)