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GET /api/patches/2227345/?format=api
{ "id": 2227345, "url": "http://patchwork.ozlabs.org/api/patches/2227345/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260423-case-sensitivity-v10-16-c385d674a6cf@oracle.com/", "project": { "id": 12, "url": "http://patchwork.ozlabs.org/api/projects/12/?format=api", "name": "Linux CIFS Client", "link_name": "linux-cifs-client", "list_id": "linux-cifs.vger.kernel.org", "list_email": "linux-cifs@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260423-case-sensitivity-v10-16-c385d674a6cf@oracle.com>", "list_archive_url": null, "date": "2026-04-23T13:12:19", "name": "[v10,16/17] nfsd: Implement NFSv4 FATTR4_CASE_INSENSITIVE and FATTR4_CASE_PRESERVING", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "b013bc29ccd3d42aba2dc5d894bf8c7a4a886b88", "submitter": { "id": 86689, "url": "http://patchwork.ozlabs.org/api/people/86689/?format=api", "name": "Chuck Lever", "email": "cel@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260423-case-sensitivity-v10-16-c385d674a6cf@oracle.com/mbox/", "series": [ { "id": 501195, "url": "http://patchwork.ozlabs.org/api/series/501195/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/list/?series=501195", "date": "2026-04-23T13:12:06", "name": "Exposing case folding behavior", "version": 10, "mbox": "http://patchwork.ozlabs.org/series/501195/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2227345/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2227345/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-cifs+bounces-11059-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-cifs@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=JaYE/SnQ;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-cifs+bounces-11059-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"JaYE/SnQ\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201" ], "Received": [ "from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g1cHT1tTNz1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 23 Apr 2026 23:23:49 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sea.lore.kernel.org (Postfix) with ESMTP id 029563101ADD\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 23 Apr 2026 13:13:57 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id EF87E3F20FE;\n\tThu, 23 Apr 2026 13:13:01 +0000 (UTC)", "from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id AAFE93F0A90;\n\tThu, 23 Apr 2026 13:13:01 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id 48483C2BCB3;\n\tThu, 23 Apr 2026 13:12:59 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776949981; cv=none;\n b=s2OTt95sXRGCGYSTd0hLPbPO+CUsqA4XZLrvw1riOzLVFdctzQBhmni1nZl5hc91ilYnyoccr3mHdh1rO1OO3+iHShc9gXGZ9BOOVERUcEQIxuSUwFnFTeveBWIwfz2fXAFOynjStUm1MqKF6RHTeXvnNUqRH24FcuOUBfbaxlI=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776949981; c=relaxed/simple;\n\tbh=XYKt46mg6wMVV2YdJGZU1apyeQ0MXeEOOUK+OVQco70=;\n\th=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References:\n\t In-Reply-To:To:Cc;\n b=PeUa2/iG/p9uCV8PtehpuLSAYP0a9WyvFVeu5Gf/JZR/8sDsB0v2XN360rSp8GjqTQZKYd/LN36MaW7Z5VwTcVhEp0FJ23EsK24wZPdyI7MUtx9rWzyHgVh10LNreR8RBm8YVhtIejTlZbBCaAdwEPtSiVk0IxbBxmbkaDz4GsA=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=JaYE/SnQ; arc=none smtp.client-ip=10.30.226.201", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1776949981;\n\tbh=XYKt46mg6wMVV2YdJGZU1apyeQ0MXeEOOUK+OVQco70=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc:From;\n\tb=JaYE/SnQVrEr92eGos5xu+rxKnYB29JOGxvTWLOW1s8/0pkDpc/NDjL6YenlsD1UX\n\t eHtXvOkGvvUY70x9iSx5tdDAD46V14R1J3yE6Cl67tvoW7BkGGfsP3gX1aHI6j8u8F\n\t 2wCG3dL6AJd9cNlnrojPiq+yf0RiFQqXeENNOZRZVqchN0PgAagYrcrDs+Kli5SN70\n\t FOGzI0MZoHx9utRo0PcvcCOwYvLnkXClk5EfZ00GJ/AbDnQfP9YUdIJgBOvI7w8BqR\n\t IzJ06vmiyD90lWmlKydA/mr2NNtbgZd4Guj+j9XGwHh3GzzLGmatVAnLpG/t8FCBG5\n\t WVJsMO7xH30mQ==", "From": "Chuck Lever <cel@kernel.org>", "Date": "Thu, 23 Apr 2026 09:12:19 -0400", "Subject": "[PATCH v10 16/17] nfsd: Implement NFSv4 FATTR4_CASE_INSENSITIVE\n and FATTR4_CASE_PRESERVING", "Precedence": "bulk", "X-Mailing-List": "linux-cifs@vger.kernel.org", "List-Id": "<linux-cifs.vger.kernel.org>", "List-Subscribe": "<mailto:linux-cifs+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-cifs+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260423-case-sensitivity-v10-16-c385d674a6cf@oracle.com>", "References": "<20260423-case-sensitivity-v10-0-c385d674a6cf@oracle.com>", "In-Reply-To": "<20260423-case-sensitivity-v10-0-c385d674a6cf@oracle.com>", "To": "Al Viro <viro@zeniv.linux.org.uk>,\n Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>", "Cc": "linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,\n linux-xfs@vger.kernel.org, linux-cifs@vger.kernel.org,\n linux-nfs@vger.kernel.org, linux-api@vger.kernel.org,\n linux-f2fs-devel@lists.sourceforge.net, hirofumi@mail.parknet.co.jp,\n linkinjeon@kernel.org, sj1557.seo@samsung.com, yuezhang.mo@sony.com,\n almaz.alexandrovich@paragon-software.com, slava@dubeyko.com,\n glaubitz@physik.fu-berlin.de, frank.li@vivo.com, tytso@mit.edu,\n adilger.kernel@dilger.ca, cem@kernel.org, sfrench@samba.org,\n pc@manguebit.org, ronniesahlberg@gmail.com, sprasad@microsoft.com,\n trondmy@kernel.org, anna@kernel.org, jaegeuk@kernel.org, chao@kernel.org,\n hansg@kernel.org, senozhatsky@chromium.org,\n Chuck Lever <chuck.lever@oracle.com>", "X-Mailer": "b4 0.16-dev", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=2833;\n i=chuck.lever@oracle.com; h=from:subject:message-id;\n bh=QFOGuYFmcxqWyXGZEGt68U1bhDPXmPPrCdAEtt84t6g=;\n b=owEBbQKS/ZANAwAKATNqszNvZn+XAcsmYgBp6hq0SERDMzl/Ku6k/coKNHnWTaSTkehoUKGr1\n XmcqZPciViJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCaeoatAAKCRAzarMzb2Z/\n l+ycD/0XgnwZjb+9LZ1rFtZ/uYLu7XNGKoWGsTX0pGthYq7Ri4V7/KNMz7dap+QXhykptCfRODB\n VXFszVhCfmFBjn32+ec5ZMA65+iem2nVL18lFNplLt84eYxQlVQ4kUioFiyDG8JZslt5cNfV7r5\n o/8ILCI9Ea7ga6nEEXUUiXkugmzKgDPiK56FVzu8gLZA53SIBoiILFyQMskPQ2LmTTGFDwtoQun\n J/qM4Q4WErc5UybzBqcVlWxD8lYBlpMqmFiSpaHFFWk30HYuANc2srzAY049/esIHMLWRlZDXJe\n wHswH9Qo0VyHxY1jtAw2o6Lt+gPrX9DaSE5xac6hlhc+0e10IvKCsymoUKbK808tRIRDiIPtfgU\n VL3Vv5rpzV821SHU5m8iF8PwxYyg3OVvCSfaZ7ntMLtLz+I2AArRCXRUPeutyc2OWuYFZG/KUdv\n SjpeeLJ/IBjZjwyMKdGYxdGlVUaXoXjcmCxB/4dD30XTIVpP1nM0V3jHKhL1usNCeJE3Y00RvLb\n IzoPwqVA4F0ETMqlhXoC+FcuVuG1jFzQiL1fa/9U3GqfuDXA6E2haY4V3H3kf4anCk+xZ896xZ4\n TmS6hzQD9y91jQbH19KpUVc+UXRiSK8OwnDtePopyx6OsNf8SwMTYN5qbCQvD0KbYOqEt10yfjI\n b/LfLZXA5r/lbRA==", "X-Developer-Key": "i=chuck.lever@oracle.com; a=openpgp;\n fpr=28B2E5B01286DF243CF23EFE336AB3336F667F97" }, "content": "From: Chuck Lever <chuck.lever@oracle.com>\n\nNFSD currently provides NFSv4 clients with hard-coded responses\nindicating all exported filesystems are case-sensitive and\ncase-preserving. This is incorrect for case-insensitive filesystems\nand ext4 directories with casefold enabled.\n\nQuery the underlying filesystem's actual case sensitivity via\nnfsd_get_case_info() and return accurate values to clients. This\nsupports per-directory settings for filesystems that allow mixing\ncase-sensitive and case-insensitive directories within an export.\n\nSigned-off-by: Chuck Lever <chuck.lever@oracle.com>\n---\n fs/nfsd/nfs4xdr.c | 25 +++++++++++++++++++++++--\n 1 file changed, 23 insertions(+), 2 deletions(-)", "diff": "diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c\nindex 2a0946c630e1..961cd59756fb 100644\n--- a/fs/nfsd/nfs4xdr.c\n+++ b/fs/nfsd/nfs4xdr.c\n@@ -3158,6 +3158,8 @@ struct nfsd4_fattr_args {\n \tu32\t\t\trdattr_err;\n \tbool\t\t\tcontextsupport;\n \tbool\t\t\tignore_crossmnt;\n+\tbool\t\t\tcase_insensitive;\n+\tbool\t\t\tcase_preserving;\n };\n \n typedef __be32(*nfsd4_enc_attr)(struct xdr_stream *xdr,\n@@ -3356,6 +3358,18 @@ static __be32 nfsd4_encode_fattr4_acl(struct xdr_stream *xdr,\n \treturn nfs_ok;\n }\n \n+static __be32 nfsd4_encode_fattr4_case_insensitive(struct xdr_stream *xdr,\n+\t\t\t\t\tconst struct nfsd4_fattr_args *args)\n+{\n+\treturn nfsd4_encode_bool(xdr, args->case_insensitive);\n+}\n+\n+static __be32 nfsd4_encode_fattr4_case_preserving(struct xdr_stream *xdr,\n+\t\t\t\t\tconst struct nfsd4_fattr_args *args)\n+{\n+\treturn nfsd4_encode_bool(xdr, args->case_preserving);\n+}\n+\n static __be32 nfsd4_encode_fattr4_filehandle(struct xdr_stream *xdr,\n \t\t\t\t\t const struct nfsd4_fattr_args *args)\n {\n@@ -3748,8 +3762,8 @@ static const nfsd4_enc_attr nfsd4_enc_fattr4_encode_ops[] = {\n \t[FATTR4_ACLSUPPORT]\t\t= nfsd4_encode_fattr4_aclsupport,\n \t[FATTR4_ARCHIVE]\t\t= nfsd4_encode_fattr4__noop,\n \t[FATTR4_CANSETTIME]\t\t= nfsd4_encode_fattr4__true,\n-\t[FATTR4_CASE_INSENSITIVE]\t= nfsd4_encode_fattr4__false,\n-\t[FATTR4_CASE_PRESERVING]\t= nfsd4_encode_fattr4__true,\n+\t[FATTR4_CASE_INSENSITIVE]\t= nfsd4_encode_fattr4_case_insensitive,\n+\t[FATTR4_CASE_PRESERVING]\t= nfsd4_encode_fattr4_case_preserving,\n \t[FATTR4_CHOWN_RESTRICTED]\t= nfsd4_encode_fattr4__true,\n \t[FATTR4_FILEHANDLE]\t\t= nfsd4_encode_fattr4_filehandle,\n \t[FATTR4_FILEID]\t\t\t= nfsd4_encode_fattr4_fileid,\n@@ -3968,6 +3982,13 @@ nfsd4_encode_fattr4(struct svc_rqst *rqstp, struct xdr_stream *xdr,\n \t\targs.fhp = tempfh;\n \t} else\n \t\targs.fhp = fhp;\n+\tif (attrmask[0] & (FATTR4_WORD0_CASE_INSENSITIVE |\n+\t\t\t FATTR4_WORD0_CASE_PRESERVING)) {\n+\t\tstatus = nfsd_get_case_info(dentry, &args.case_insensitive,\n+\t\t\t\t\t &args.case_preserving);\n+\t\tif (status != nfs_ok)\n+\t\t\tgoto out;\n+\t}\n \n \tif (attrmask[0] & FATTR4_WORD0_ACL) {\n \t\terr = nfsd4_get_nfs4_acl(rqstp, dentry, &args.acl);\n", "prefixes": [ "v10", "16/17" ] }