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 83ED8C61DFD for ; Tue, 1 Sep 2026 02:46:38 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4hYqxm1JbKz2yCv; Tue, 01 Sep 2026 12:46:36 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=115.124.30.100 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1788230796; cv=none; b=hJMzdMxrMczKjUQ69i5B9MLadE1QDbOUuu9JWjRR1KRujP6XIOlaCYVJC7JA47H0Z9Mpx8Iv8iJeISpeFisuyX4kWRyt8hqZACI25eKTqQHOaIFMSSSYtUySTxDADElDjeyxxfzBAAMN5B4RNkOnzKVPqLwW3K1f1Po1W/7zaJkSSBNFB3b9GrxutsCrll0rcv1dzOONDCQm8OBGBThSrTjwjCNREtLqlqIadvlFbpLaLXEq2LxlmhOqUZKLVpJINGr9x+SQQiNOgMpau6V59lzrzowtCumcbQfiMhdN4U84PaTBjKlhQl06OYj3OvRPWMBUM1NEIPo05IYUswkjYg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1788230796; c=relaxed/relaxed; bh=IyaV4kBdlXf7cBkSle+mYaQW1tk/WVCgk/l7xdb2q8w=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=IeUn1aZh5QoWGDFxJmEsS7mOX0GmegKlIg5oKVBOGMGIG6WPG8S7IOsVuV43H97zJqqmhehFSNPhiMC67Io3YpTls/RJYrLzrHPBO0Lxpb7JuyA3fsQzi/qYK72OJBWa8/2DEXJqFuOcQ3KNVHZwYkTzWS0zvmVTZOvQxzNz4R5jgIEK/mcJGBDOgfMfMWveBS/P/Aob3k8u9pyjGcpnCWXrcEwGYZgoY3jGtjQ88/cKTLewCsvceeqto8FQjltXwlyPJSsrcoJ11V4Zya1PLzxZ1hsumZdCq/cLnd7ovROqqkLyst5v5X/4hHCQ6OmFXUxZZ/Du9LY5vB3n51sy+w== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; dkim=pass (1024-bit key; unprotected) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.a=rsa-sha256 header.s=default header.b=YK30FSwW; dkim-atps=neutral; spf=pass (client-ip=115.124.30.100; helo=out30-100.freemail.mail.aliyun.com; envelope-from=jefflexu@linux.alibaba.com; receiver=lists.ozlabs.org) smtp.mailfrom=linux.alibaba.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.a=rsa-sha256 header.s=default header.b=YK30FSwW; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.alibaba.com (client-ip=115.124.30.100; helo=out30-100.freemail.mail.aliyun.com; envelope-from=jefflexu@linux.alibaba.com; receiver=lists.ozlabs.org) Received: from out30-100.freemail.mail.aliyun.com (out30-100.freemail.mail.aliyun.com [115.124.30.100]) (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 4hYqxj13mTz2xpn for ; Tue, 01 Sep 2026 12:46:30 +1000 (AEST) DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1788230784; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=IyaV4kBdlXf7cBkSle+mYaQW1tk/WVCgk/l7xdb2q8w=; b=YK30FSwW5sgQ6KHWS+pnZre4DJP6Q9P4rmFiK1TzoYGweRG14OZef+up6knJoRsJWZTNbdipeSs4+CTz0h4gJyYHTnD+No+vQsGe4tQw8brETUD7BejS5wUgepqM+ZkSuhWpVKAaG3RxPsBlNjhI0ULhRSokdhMfHeTDg1NR8Is= 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 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-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