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GET /api/patches/2227003/?format=api
{ "id": 2227003, "url": "http://patchwork.ozlabs.org/api/patches/2227003/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260422-case-sensitivity-v9-12-be023cc070e2@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": "<20260422-case-sensitivity-v9-12-be023cc070e2@oracle.com>", "list_archive_url": null, "date": "2026-04-22T23:30:06", "name": "[v9,12/17] f2fs: Add case sensitivity reporting to fileattr_get", "commit_ref": null, "pull_url": null, "state": "new", "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-cifs-client/patch/20260422-case-sensitivity-v9-12-be023cc070e2@oracle.com/mbox/", "series": [ { "id": 501130, "url": "http://patchwork.ozlabs.org/api/series/501130/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-cifs-client/list/?series=501130", "date": "2026-04-22T23:29:54", "name": "Exposing case folding behavior", "version": 9, "mbox": "http://patchwork.ozlabs.org/series/501130/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2227003/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2227003/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-cifs+bounces-11025-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=il7N3dGq;\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; 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a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776900646; cv=none;\n b=DgabAxbhUiZnEfEcbqM87e0XIAO3qzLo0k31t5oiTnesX78bkMaS4v1FLW8sAz+dmyfRhGAzF8MNZG+XwrTOKXk6Bcp3pcLs87RorvNyoGwNPmxrA9NDiidufPbLgiW0bQodwQu3o5YdiVbwIX/RVPpNMGiVOFoDdVquAW9XJCU=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776900646; c=relaxed/simple;\n\tbh=PjsU9Svmz06mzp6rEncT9E/c+j3QoZVc1ar43kaCids=;\n\th=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References:\n\t In-Reply-To:To:Cc;\n b=sByMEm+VKsuhEWc5uzn+OwrDR6JVMseCgOQlRR8efJlNWjj9QZE5MbvAm3IwGzB9t9vQ5gRmDwHUsbi8LoXTGT1uBaIW6wt4HajMfC2IsNLdCcGX0W62J/99/eJVdkk47kYjHAiyl80wMmVnMvNY5TSEZdBFugc/up33LiWLAQ8=", "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=il7N3dGq; 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=1776900645;\n\tbh=PjsU9Svmz06mzp6rEncT9E/c+j3QoZVc1ar43kaCids=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc:From;\n\tb=il7N3dGqj0CggeHfeUKm2GgxwU7TmpzqTirAkrMvLZV84Z5Ys3t0NO5UfPyqwBQ4w\n\t KfkNQkGt6XesfFbIpALB85c/t+u6iWyj0pGW1K1ZQI2ph8ZTRxmpYVsKivD1RIngU2\n\t GmBgccGOgHGI7UcfNkpTNp/rqhSuReDPRkivzSk75Ww+ni9fHUfSwoJJY+HUEkvzkB\n\t JOPwCPnWyyDvZ/htWc3L/42TCeWrFSmjWrSf1iTeGjYapMRIOdesYftUN0xl76qiXv\n\t 2l+GQXZx7hZghbxGgEtjG31ruvSBlp0yE2vPdkbxo/3seAX/x9/WgAZOCgCWUDBj0Q\n\t //meVAlWqzAmA==", "From": "Chuck Lever <cel@kernel.org>", "Date": "Wed, 22 Apr 2026 19:30:06 -0400", "Subject": "[PATCH v9 12/17] f2fs: Add case sensitivity reporting to\n fileattr_get", "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": "<20260422-case-sensitivity-v9-12-be023cc070e2@oracle.com>", "References": "<20260422-case-sensitivity-v9-0-be023cc070e2@oracle.com>", "In-Reply-To": "<20260422-case-sensitivity-v9-0-be023cc070e2@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+XAcsmYgBp6VoGUJjs9CvzEarp5VOjWZnmXKebFLgGJvGS4\n HWl/+7McbaJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCaelaBgAKCRAzarMzb2Z/\n l5VJEACcD/MoAmNmtfPCbhXwyXSyo/LDgCQ9S7FiAtuTBH1mbE3CWSXtfrmueyUzcuGWbvTWuLd\n 6VRIdx2ood3dd0HWhRVh85EAnKNK4OLI4Q2BRlzhWtD1TaLnq1LKeiCU31d8QgNhrnk9Z8b6AaA\n ABJxaW/nMl1g7foin4qMFu7IueKML9wyKSI4NvfqNzvuJ45I2LW+E0jcR++1lrBFO+lF+YXgaE7\n 88eABqKP00oJNVNgGbMF9pY8b//R3V6u/nZrV/CgADJMSC5g8OaR6nEI9iOtsU81XjAk1CzgY6V\n LbjL9BwK6mZuj7vZAcep4x/g3qNL3tk8JNRRXHIW4A4nAutITm8WSk3d7zYvn1V0CLvpYWl6XVj\n 5Au3BWnDEwD8TNv5e2cVTgSrL2SEuB5nTxZgWMob1QY/DNhCOOc9dBI62V1tp/Y2J6dx8AzMJkP\n MNzH+uIdoxpRGAo3u21a5A58cX9IPQGIhygMpa0+VczI0+exxGrP+Nb2kYLmwErkiIQX/wnus4m\n /HFCC5xmpAEDMzANfBaifXgPSR7V/oCkxFAtCf4h/r/PHG8jRTcF9jwJtrtyEEiBypUk8f5y0nM\n l79H+tg7pEauZNiiAFtt83HEiGxmHrYK8ITV0Gu1ruMxFPyMuj5quEpf/6WfLePQfc3KEtbmOde\n mgcBPtMCLfcCYhg==", "X-Developer-Key": "i=chuck.lever@oracle.com; a=openpgp;\n fpr=28B2E5B01286DF243CF23EFE336AB3336F667F97" }, "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": [ "v9", "12/17" ] }