From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (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 8B12131BCB9; Mon, 8 Dec 2025 09:56:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765187777; cv=none; b=s3rD1jiCqBljIrrqViCCMAhCGtY+HFo1QjH2HL1fSU4FSd0vRUQoWbjdWVPVi7xAYyZkjKeYVcnsPHYoWK3DAPhWwoBsFakOw0j+5Usz3vuyo50NI53vUUS2P9thHxR+2kSUcPS2QS9i78Pd8OHdrq5H8t7cr9YtgtiDdcXIH3Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765187777; c=relaxed/simple; bh=e/uROyPMHIRFeOPSItP50Jy8z0uBMXZntADnssQfm3g=; h=Message-ID:Date:MIME-Version:Subject:From:To:CC:References: In-Reply-To:Content-Type; b=ml/5UHuba855CAUKjMMlozFdLIsN2K3xQHf3O08Ydt2Xdq6WOp4GtEtD8t+aarM8h+ur/g1X00FsmfiMMxHe7DvmM8r0zePgajHvzi8BdKe+RdoWeEB+WWrPMwuvCxE/lW2av9nJgXpR9LkgW4ovb08dxv8dIRXSxs+DG1dAQdI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=h-partners.com; dkim=pass (1024-bit key) header.d=h-partners.com header.i=@h-partners.com header.b=FMxNCVCM; dkim=pass (1024-bit key) header.d=h-partners.com header.i=@h-partners.com header.b=FMxNCVCM; arc=none smtp.client-ip=45.249.212.187 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=h-partners.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=h-partners.com header.i=@h-partners.com header.b="FMxNCVCM"; dkim=pass (1024-bit key) header.d=h-partners.com header.i=@h-partners.com header.b="FMxNCVCM" dkim-signature: v=1; a=rsa-sha256; d=h-partners.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=twA+W597NFGI0J+KIKwQRx3CHDy7Ai7taeqrpUm87j8=; b=FMxNCVCMxUADMYdLFAZp6cSxRu0KtsvyS7rLKlacVHTwtTbIeA9lK7CT3U5XqqJ3z1vLtYVlD 8enhJoIXRPEfneM5zeCzx+WZZYH25YRPTAU0y8fYVQgE8xZ7w9GNR6IOeg4xt/6QNoDKwozy09U 0SsagypmukoiRVnD2fRTR5Q= Received: from canpmsgout06.his.huawei.com (unknown [172.19.92.157]) by szxga01-in.huawei.com (SkyGuard) with ESMTPS id 4dPy6X2WPdz1BFrL; Mon, 8 Dec 2025 17:56:04 +0800 (CST) dkim-signature: v=1; a=rsa-sha256; d=h-partners.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=twA+W597NFGI0J+KIKwQRx3CHDy7Ai7taeqrpUm87j8=; b=FMxNCVCMxUADMYdLFAZp6cSxRu0KtsvyS7rLKlacVHTwtTbIeA9lK7CT3U5XqqJ3z1vLtYVlD 8enhJoIXRPEfneM5zeCzx+WZZYH25YRPTAU0y8fYVQgE8xZ7w9GNR6IOeg4xt/6QNoDKwozy09U 0SsagypmukoiRVnD2fRTR5Q= Received: from mail.maildlp.com (unknown [172.19.163.48]) by canpmsgout06.his.huawei.com (SkyGuard) with ESMTPS id 4dPy4H4bqfzRhVS; Mon, 8 Dec 2025 17:54:07 +0800 (CST) Received: from dggpemr100013.china.huawei.com (unknown [7.185.36.198]) by mail.maildlp.com (Postfix) with ESMTPS id 1ABD518047C; Mon, 8 Dec 2025 17:56:03 +0800 (CST) Received: from [10.174.186.66] (10.174.186.66) by dggpemr100013.china.huawei.com (7.185.36.198) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 8 Dec 2025 17:56:02 +0800 Message-ID: Date: Mon, 8 Dec 2025 17:56:01 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [Question] nfsacl: why deny owner mode when deny user From: "zhangjian (CG)" To: , , CC: , References: <32686cd5-f149-4ea4-a13f-8b1fbb2cca44@huawei.com> In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: kwepems500001.china.huawei.com (7.221.188.70) To dggpemr100013.china.huawei.com (7.185.36.198) When user read bit is denied by nfs4_setfacl, owner read bit is also denied. Example: [root@localhost ~]# nfs4_getfacl test/a # file: test/a A::OWNER@:rwatTcCy A::1000:rwatcy A::GROUP@:rtcy A::EVERYONE@:rtcy [root@localhost ~]# nfs4_setfacl -a D::1000:r test/a [root@localhost ~]# nfs4_getfacl test/a # file: test/a D::OWNER@:r A::OWNER@:watTcCy D::1000:r A::1000:watcy A::GROUP@:rtcy A::EVERYONE@:rtcy In function process_one_v4_ace, I see read bit is denied for owner: case ACL_USER: i = find_uid(state, state->users, ace->who); if (ace->type == NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE) { allow_bits(&state->users->aces[i].perms, mask); } else { deny_bits(&state->users->aces[i].perms, mask); mask = state->users->aces[i].perms.deny; deny_bits(&state->owner, mask); } This change is commit in 09229ed. But I wonder why it is implemented like this.