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GET /api/patches/2227337/?format=api
{ "id": 2227337, "url": "http://patchwork.ozlabs.org/api/patches/2227337/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260423-case-sensitivity-v10-12-c385d674a6cf@oracle.com/", "project": { "id": 8, "url": "http://patchwork.ozlabs.org/api/projects/8/?format=api", "name": "Linux ext4 filesystem development", "link_name": "linux-ext4", "list_id": "linux-ext4.vger.kernel.org", "list_email": "linux-ext4@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260423-case-sensitivity-v10-12-c385d674a6cf@oracle.com>", "list_archive_url": null, "date": "2026-04-23T13:12:15", "name": "[v10,12/17] f2fs: Add case sensitivity reporting to fileattr_get", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "326bd754da024b10e84cb5a167ddaef4ba9b1698", "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-ext4/patch/20260423-case-sensitivity-v10-12-c385d674a6cf@oracle.com/mbox/", "series": [ { "id": 501194, "url": "http://patchwork.ozlabs.org/api/series/501194/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/list/?series=501194", "date": "2026-04-23T13:12:04", "name": "Exposing case folding behavior", "version": 10, "mbox": "http://patchwork.ozlabs.org/series/501194/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2227337/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2227337/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <SRS0=Ptr0=CW=vger.kernel.org=linux-ext4+bounces-16061-patchwork-incoming=ozlabs.org@ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-ext4@vger.kernel.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "patchwork-incoming@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=XyVfCJyz;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=2404:9400:2221:ea00::3; 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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=1776949971;\n\tbh=PjsU9Svmz06mzp6rEncT9E/c+j3QoZVc1ar43kaCids=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc:From;\n\tb=XyVfCJyzEOK6OpBoLoOefj9vIEAfTQY4RMuHpWrtQCKtxw8ZQ2hwX/a4+VoEIL5xZ\n\t G2K2PcoYJ26JDjQ7NYsztAgoe63NSUFgOMV/ljxUVxbi68qgqws5++KyIe/QchZzk5\n\t 9zwmwf751l0WrUfgoqU6E9OjmpI5WRGxdWVhD90X/+Fmdr7iwz+iJZl8uRi9qH17X8\n\t OFl6zyCFSjoCTiwgoSUajU1CL6ZvxhP6aDyn4PNCUqy89DMWuYLYZyZ83PhfjM5z+2\n\t E5q0KcAfDJ82+5mf5EWd2oc2IY+iotYbZKLoYnM7pl0lwrLN81p+URZBNfX0kIKS4a\n\t wscFMoYjBQLWg==", "From": "Chuck Lever <cel@kernel.org>", "Date": "Thu, 23 Apr 2026 09:12:15 -0400", "Subject": "[PATCH v10 12/17] f2fs: Add case sensitivity reporting to\n fileattr_get", "Precedence": "bulk", "X-Mailing-List": "linux-ext4@vger.kernel.org", "List-Id": "<linux-ext4.vger.kernel.org>", "List-Subscribe": "<mailto:linux-ext4+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-ext4+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260423-case-sensitivity-v10-12-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=1357;\n i=chuck.lever@oracle.com; h=from:subject:message-id;\n bh=VPjzbnXW1pubGqzv+x/v8JVwQ1rV4VASVn6uK7QQPMw=;\n b=owEBbQKS/ZANAwAKATNqszNvZn+XAcsmYgBp6hq01oe4hrZUserJsuf/NEs+cgupLfYyc5a52\n 6R79zdge4iJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCaeoatAAKCRAzarMzb2Z/\n l4ZBD/9wjTO+FgmmJWESBaRJUhoMgK1nZIp7zgs+Wa6SmIxuIdzrpbMs+xm1OAqllWNB6IIvw0B\n 6ccNv0Q6DS6iU8ItuVw3tOp7HLe401lJlgouULwUUMYXLU1E+l+gXr8m6rPUoTXJNEhss2AEH9r\n oBoz6jRj6LaH7on75SZvEW6/28fC3GxcUfB+2I5y6TyDhu/GjizbiI7ZK46ZT3DXHBk8OOk+pjG\n cZv6oeu29/MBQQ4gTDr7WSNkkbIts35lcIrm/W7nq0AY4jAkarHCPcm8j5kVpdQBO15BC/+/6we\n dgM6/p7jV61E5LjEluzL9b55N1ntJRwTHuu6mcTWqif2pT3aOvWkBJNuluEJDOkCG/oFuTyT4dJ\n xBJWjtURC6STk6hOIZTx37/slUhlp1aocnhqnxFEnzCaDVpFw2NGOWUH8Ew7HJdOwt3y+e+52Mc\n ReREwUMol0AizDnbSIpJaq77SJjUp78zfj/DdTmFj1MKChJUM/1jVKcfsVP8rgJl4FPwoyyNsHi\n stShGcmDkz7XyKa4+QD1TfOSqP/TAyHCADwELknIrkme0FX2UNxRnPZA4WAROx7QPVJlg9ab5nu\n 9mmP3QrzjSE1I4rilxNUgsThXlThhwP6VYCF4yPRhdhGIhi2m5wrUFRW5Z2ANHDlFbIQsUjHgey\n ihCsVbuZhW2a1+g==", "X-Developer-Key": "i=chuck.lever@oracle.com; a=openpgp;\n fpr=28B2E5B01286DF243CF23EFE336AB3336F667F97", "X-Spam-Status": "No, score=-1.2 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DMARC_PASS,\n\tMAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=disabled\n\tversion=4.0.1", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org" }, "content": "From: Chuck Lever <chuck.lever@oracle.com>\n\nNFS and other remote filesystem protocols need to determine\nwhether a local filesystem performs case-insensitive lookups\nso they can provide correct semantics to clients. Without\nthis information, f2fs exports cannot properly advertise\ntheir filename case behavior.\n\nReport f2fs case sensitivity behavior via the FS_XFLAG_CASEFOLD\nflag. Like ext4, f2fs supports per-directory case folding via\nthe casefold flag (IS_CASEFOLDED). f2fs always preserves case\nat rest.\n\nReviewed-by: Chao Yu <chao@kernel.org>\nSigned-off-by: Chuck Lever <chuck.lever@oracle.com>\n---\n fs/f2fs/file.c | 8 ++++++++\n 1 file changed, 8 insertions(+)", "diff": "diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c\nindex fb12c5c9affd..347568ff0d58 100644\n--- a/fs/f2fs/file.c\n+++ b/fs/f2fs/file.c\n@@ -3463,6 +3463,14 @@ int f2fs_fileattr_get(struct dentry *dentry, struct file_kattr *fa)\n \tif (f2fs_sb_has_project_quota(F2FS_I_SB(inode)))\n \t\tfa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid);\n \n+\t/*\n+\t * Casefold is a per-directory attribute in f2fs; the on-disk\n+\t * name is preserved regardless. Report FS_XFLAG_CASEFOLD for\n+\t * casefolded directories so callers (e.g. NFS export) can\n+\t * advertise case-insensitive lookup semantics for that tree.\n+\t */\n+\tif (IS_CASEFOLDED(inode))\n+\t\tfa->fsx_xflags |= FS_XFLAG_CASEFOLD;\n \treturn 0;\n }\n \n", "prefixes": [ "v10", "12/17" ] }