From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 1DC4B4AAC59 for ; Wed, 16 Sep 2026 16:06:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789574797; cv=none; b=Evw7uYTwDHzSb7ukRUw/txhKKfhG6/ugklnnEb66vZRJ1phXS0q9e16nUo4sR+5oBkAi7lkPrZt//fu7UAnX3OcIvpRGiz0ZzD08CVVQWBzNFiU73rGrVNo74IUHX2oQCjXBvGT2CPFCvUW7Df9SH2ASKVwjOXzB+8SFRjWAKls= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789574797; c=relaxed/simple; bh=XM4HvxMzhZvfrqgXWVaSyOlckYDiLP4At6vnwObzNX4=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=lBdUKz9umYQbgoFgFSX6bmPvIaqLXNLOMN+j590NyiOU6x04h0dS6INJ++usEiaa1IisUfx2lnAbBLR1VbazR9weEzYRYqe3HBqtrL2gAUfKwdhWl25CT1cVGFa1qCRaXl7TBM5Pit7oUIplGJfp6YxlCJzR82FMHIYQmTlNCVA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=dY9+WVF5; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="dY9+WVF5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 061D81F000FF; Wed, 16 Sep 2026 16:06:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789574795; bh=CFz5b0kQd1A6pYQcpTZRvAxPqDtDUd3mH1ncRWjFEVU=; h=Subject:To:Cc:From:Date; b=dY9+WVF5DJIBYJtT57JRGBF5D7wlPj76DmNkeWL8omiWmUFpGqHsP4byAOWV2Z+Er d1wbXBF5I3ooR44Zc7rma3DwH1Nk51zjZrTZJA7K4AxDNWRBo2tr0N0uNlwS+TneQO Q2MNWqmWqPII8NDq6VB3kE2Qg5ddBSd86tuBNpbY= Subject: FAILED: patch "[PATCH] erofs: add sysfs feature entry for xattr prefixes" failed to apply to 6.6-stable tree To: jefflexu@linux.alibaba.com,xiang@kernel.org Cc: From: Date: Wed, 16 Sep 2026 16:42:51 +0100 Message-ID: <2026091651-stubble-sloping-7a9b@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 839f075aabdf5c21048f9801b87c0b841dd3d064 # git commit -s git send-email --to '' --in-reply-to '2026091651-stubble-sloping-7a9b@gregkh' --subject-prefix 'PATCH 6.6.y' 'HEAD^..' Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 839f075aabdf5c21048f9801b87c0b841dd3d064 Mon Sep 17 00:00:00 2001 From: Jingbo Xu Date: Wed, 2 Sep 2026 09:50:39 +0800 Subject: [PATCH] erofs: add sysfs feature entry for xattr prefixes Let /sys/fs/erofs/features/xattr_prefixes advertise that this kernel supports the EROFS_FEATURE_INCOMPAT_XATTR_PREFIXES on-disk format. Fixes: 6a318ccd7e08 ("erofs: enable long extended attribute name prefixes") Cc: stable@vger.kernel.org # 6.4+ Reviewed-by: Gao Xiang Signed-off-by: Jingbo Xu Signed-off-by: Gao Xiang diff --git a/Documentation/ABI/testing/sysfs-fs-erofs b/Documentation/ABI/testing/sysfs-fs-erofs index e4cf6fc6a106..0b8b4354e40b 100644 --- a/Documentation/ABI/testing/sysfs-fs-erofs +++ b/Documentation/ABI/testing/sysfs-fs-erofs @@ -5,7 +5,7 @@ Description: Shows all enabled kernel features. Supported features: compr_cfgs, big_pcluster, chunked_file, device_table, compr_head2, sb_chksum, ztailpacking, dedupe, fragments, - 48bit, metabox. + xattr_prefixes, 48bit, metabox. What: /sys/fs/erofs//sync_decompress Date: November 2021 diff --git a/fs/erofs/sysfs.c b/fs/erofs/sysfs.c index 6734483a440f..dfcec9376cd5 100644 --- a/fs/erofs/sysfs.c +++ b/fs/erofs/sysfs.c @@ -95,6 +95,7 @@ EROFS_ATTR_FEATURE(sb_chksum); EROFS_ATTR_FEATURE(ztailpacking); EROFS_ATTR_FEATURE(fragments); EROFS_ATTR_FEATURE(dedupe); +EROFS_ATTR_FEATURE(xattr_prefixes); EROFS_ATTR_FEATURE(48bit); EROFS_ATTR_FEATURE(metabox); @@ -108,6 +109,7 @@ static struct attribute *erofs_feat_attrs[] = { ATTR_LIST(ztailpacking), ATTR_LIST(fragments), ATTR_LIST(dedupe), + ATTR_LIST(xattr_prefixes), ATTR_LIST(48bit), ATTR_LIST(metabox), NULL,