From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-113.freemail.mail.aliyun.com (out30-113.freemail.mail.aliyun.com [115.124.30.113]) (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 E4A5E42E439 for ; Tue, 1 Sep 2026 02:46:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.113 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788230802; cv=none; b=X6WqUn0vUb3GRIRjwPhaUH9uodjCxOmB5J3CHzDsTEk0S3T/MiYX+f8pZR6YGBEBKclhrex853c2h0AY1Qj25PBD8W1kE+8N4TeAWsUtb6uz5G3mSjB0jIeNgCqIaXCf9abnjndSPudo38V53W/I4lLUIl077NaKyeiq6+hl3kU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788230802; c=relaxed/simple; bh=Kof3HYR0mYhpxVe+O+oMBtSbLkr1f7IE0arSeXyBnWE=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=hjYW0l3YMsnUK5A3nbsv/N4BTdv/sb78e95ssOoaB29FUVY3xcwxBt3WOHAvvnGAhT/3S+45W6Y4Nq2/VPSGzdusHj0RrUOVPsUfPppX8dvVZ6ho4dvZQ7ib+Gk1ETwDgWT1vdoEOGW8cw2Mx7blJX70spl22Tsm56Lae5W6j0U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=VKIUYw8B; arc=none smtp.client-ip=115.124.30.113 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="VKIUYw8B" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1788230783; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=IyaV4kBdlXf7cBkSle+mYaQW1tk/WVCgk/l7xdb2q8w=; b=VKIUYw8BDx1rH9FD6Vj7+4sXBVXK8Aw+2vw655FV2OpuQDyKISaFkCmKRDRfeVCpyeDM2jqwevtb4JqMPzPL5ZgJ6NRsiKaHZUxjIOcEsnRhc+UiBpfkij2XdE7efnCTASHjDPTvzSIXHbp2JoQnfKp5nDD5Yt6kItVGCoYQQVw= X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R721e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam011083073210;MF=jefflexu@linux.alibaba.com;NM=1;PH=DS;RN=4;SR=0;TI=SMTPD_---0XA1RXuA_1788230782; Received: from localhost(mailfrom:jefflexu@linux.alibaba.com fp:SMTPD_---0XA1RXuA_1788230782 cluster:ay36) by smtp.aliyun-inc.com; Tue, 01 Sep 2026 10:46:22 +0800 From: Jingbo Xu To: xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH] erofs: add sysfs feature entry for xattr prefixes Date: Tue, 1 Sep 2026 10:46:22 +0800 Message-Id: <20260901024622.108319-1-jefflexu@linux.alibaba.com> X-Mailer: git-send-email 2.19.1.6.gb485710b Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Let /sys/fs/erofs/features/xattr_prefixes advertise that this kernel supports the EROFS_FEATURE_INCOMPAT_XATTR_PREFIXES on-disk format. Signed-off-by: Jingbo Xu --- fs/erofs/sysfs.c | 2 ++ 1 file changed, 2 insertions(+) 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, -- 2.19.1.6.gb485710b