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 F2D26169AD2 for ; Mon, 27 Apr 2026 10:18:19 +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=1777285100; cv=none; b=Jvch9qJJ1s7Tm2Ez5T8hpgj8txzJr9qHgShuiNctAABI+zGQjjWlLECrllKRgNvBpxDoPL3gyPStix/Y4rTp78gqcT6h8Kl+HbdJ2Y7gSzbrCR6y6wiRLMPuJOTWdfIZUXtiaKx/LpWdNOtv0Y/dgdZGFUwWUXHjPWJL5WAubU8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777285100; c=relaxed/simple; bh=cokB+rE+3lMi6h44uNRcQk/Bi//I6ASoWw7flNDLwfQ=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=o9tBg+3EY9DnVT+tDPHFjgt2gTKMJW51oZWlhG60wVHDJw2CZJ4boQMQU45t8CSBdpyNP4ldUKFnxJQ8p8hAfvQ22Mk/PIIyEgbSQvWqO0yN+HKjtke0RJvxNDYTLYeMXBf9ASQ2ugYlxcWNtfnMuu7Z4N6omA7kqrO8D57vfuE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mHw4vqnq; 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="mHw4vqnq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 16E0BC19425 for ; Mon, 27 Apr 2026 10:18:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777285099; bh=cokB+rE+3lMi6h44uNRcQk/Bi//I6ASoWw7flNDLwfQ=; h=From:To:Subject:Date:From; b=mHw4vqnqAekRvz5vBd/Yq5sBEhQbEctjBo2AzuqgNFurXrD65T/+WfU1FHVL2tYHU rhoNY96+GX/jM65bg2aM8twKWEvyDRR4mDnRhG5a3WqD9rmbU++tY++7tQGE3x3mju cJL9sQ3Lfwj/rsOa+knqJB90TGiHljIdKKA+aFmZb06JV0FmPwzSbtf4aQ9faqzq2Z Ar0VT1Z1Db7epg7fmudq72+GHOOmLRGINu3fLvDrml5yMroIq52Putt+21OqPHQj+D J8WN9VMFqo+PaPNxERDXyl2YL5TZz3r1Hw/TWMsIhIovJ7kvQEYjo9FUQgVZqPhOb0 LCy9IV/ZnAt8Q== From: Anand Jain To: linux-btrfs@vger.kernel.org Subject: [PATCH v3 0/2] fix s_uuid and f_fsid consistency for cloned filesystems Date: Mon, 27 Apr 2026 18:18:02 +0800 Message-ID: X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit v3: Thanks for the input. The plan to implement a consistent f_fsid across all major filesystems has been dropped for now, so ext4 patch is removed. Please refer to the discussion here [1]: [1] https://lore.kernel.org/linux-btrfs/33e8eb64c304a4d42b60f608c26497bf9a2e9e19.1774092915.git.asj@kernel.org/#t This patch set specifically addresses the issue reported by OverlayFS [2] regarding cloned Btrfs filesystems. [2] https://lore.kernel.org/linux-btrfs/20251014015707.129013-1-andrealmeid@igalia.com v2: https://lore.kernel.org/linux-btrfs/cover.1774092915.git.asj@kernel.org Anand Jain (2): btrfs: use on-disk uuid for s_uuid in temp_fsid mounts btrfs: derive f_fsid from on-disk fsuuid and dev_t fs/btrfs/disk-io.c | 11 ++++++++++- fs/btrfs/super.c | 41 +++++++++++++++++++++++++++++++++-------- 2 files changed, 43 insertions(+), 9 deletions(-) -- 2.43.0