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 34ACB309F09 for ; Thu, 17 Sep 2026 00:19:24 +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=1789604365; cv=none; b=dgzpOexuFaqsWit/st5Iy+dbl2VOzF/DYs/5Dg8WTW7MurVj78DSArZhcuWFG3EhDpo5X6ZHJMUyShIqjWeAMGSLefThS/OC/z/j2SAKeSqRskMR+Xj2e5vE0qdhucof2Y5Krz8kBBk8a3C6tsCSl8i1dP1azwOmK/nS5uFIqX8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789604365; c=relaxed/simple; bh=m4yH7TxfsXQUadd5/cuyd3XF+4WM/hOOK19WwbXkqV0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=h6VhEfabEovaP4zIr/2TzQGrXCPDJ19D+MdTbtv6eJrQfVDca/091nTfrg8t2KKB9tyaV96/hzzM7U8WvWwCk8q2baDFZ8SUo/LBTw2tnpnDMNyq8m5PrietJ84XrKkX5gOqawClF/V+Xp2AMCMy7Jo12e8WfLy0226WFFew0kQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=X9XmQTR+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="X9XmQTR+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9FC2B1F00899; Thu, 17 Sep 2026 00:19:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789604364; bh=RSvYzOF+BtluAr6x638LEak+0zjkQ3Pt1MGUq9cFut8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=X9XmQTR+Jh9c2zBtH24UEHKCLVXazvXX03R953AWH+xT4q4vuKikdMDom1chnEDJO Xn8nujrnnaT7dJpORIGfeqqP2CMYRsZB5D+hBnbZysgXvkBj3fMqS5GEFbLj2eti3k vdWjB+lPbgfzJYuqA5hy6dlTcPRRw7s/TdSg0Sq/h2UchIx83vS/pPjLHvFxDjw/58 Ud98estjr/y1opCNc075Is6MHCbd8beolN+BA2+MzILaYhuTM1MVmZGi5BTFaC4el9 pM5ton/OIXXs8JZusCKbx7lBflvFg8EmAlFOWPO6jfNdlLYEfYcXQyu9ebbuiGUoRh edQWxFd3YcfcA== From: Sasha Levin To: stable@vger.kernel.org Cc: Jingbo Xu , Gao Xiang , Sasha Levin Subject: [PATCH 6.18.y 2/2] erofs: add sysfs feature entry for xattr prefixes Date: Wed, 16 Sep 2026 20:19:21 -0400 Message-ID: <20260917001921.3361341-2-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260917001921.3361341-1-sashal@kernel.org> References: <2026091649-edging-stroller-a208@gregkh> <20260917001921.3361341-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Jingbo Xu [ Upstream commit 839f075aabdf5c21048f9801b87c0b841dd3d064 ] 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 Signed-off-by: Sasha Levin --- Documentation/ABI/testing/sysfs-fs-erofs | 2 +- fs/erofs/sysfs.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/ABI/testing/sysfs-fs-erofs b/Documentation/ABI/testing/sysfs-fs-erofs index e4cf6fc6a1066..0b8b4354e40b8 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 3a9a5fa000ae9..60527159bfe76 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, -- 2.53.0