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 A2707D277D0 for ; Sat, 10 Jan 2026 05:24:11 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4dp6WY6Q5tz2xRv; Sat, 10 Jan 2026 16:24:09 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.234.252.31 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1768022649; cv=none; b=FqUowG/saguoYue8IK0mX8Fy0tkcrjVIY5t3OR26DbcTr4UR7gEeA3u+FgODNeW201AVTL/tGYwIUxESdn//AOVCTHt7/h2o0MSIfoesM4ZTln5xBBR5QvwZyXg/lUVnr0lL4q41hHLOsvCimEK4sSkDoGKWPJ7pm6lsjl1S3TC5Yg0WhUDyqXwKr3Pb8E8X5hlQacTqNO55xGELXBazHP/DEdurgC+VqTya4r9CZl5V3+M9M1Msriyr63Okt4STJ6CRl7AP9NKMh4bSH/GwwftkTH43Y/x7iuYBWJHZfHwMFSOES3zoOTv5hoAOgLIpJSLBUzgqtZiJ+MRVlVYfJg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1768022649; c=relaxed/relaxed; bh=cJ0dIzb5ljX0jw/3k3KswTW2eC/oeN3x4YiCqx2ewY4=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=YkFJgC7WMJix8uTLFab8N0DKcy9LUalMRhgrwxiX+LQV7k2NDtCdCekjDGf26dm9jWJJA4HIpENeF+MVy99ch76wwLsGNha5gSWEQQe3fJDrE5BVCX5mqc02VDR9wS6q3Y3ABHyWjnNwhE1bdFf55MJiZeHrR6NB4ukC4lSQXHAgjDeMVYPTvOjWehJHs3dVc9QWJYAuqfpw4YTM6jZorTk0tVh8bpqIyL71TsLsrYUtrEfSdYV/kIk8T64eya5tk49zoKjkQtrX0IjBmAh8DyCANJ4qiR+uivHbu4tfRqlyUP41SPzkJ6NVpdbvAdDPPSWiLjnpoBCYvGxCa3PAQg== 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=N17uFM2U; dkim-atps=neutral; spf=pass (client-ip=172.234.252.31; helo=sea.source.kernel.org; envelope-from=xiang@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=N17uFM2U; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.234.252.31; helo=sea.source.kernel.org; envelope-from=xiang@kernel.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) (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 4dp6WX6pQvz2xQs for ; Sat, 10 Jan 2026 16:24:08 +1100 (AEDT) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id A53CA42AE6; Sat, 10 Jan 2026 05:24:06 +0000 (UTC) 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 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 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(-)