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GET /api/patches/2227316/?format=api
{ "id": 2227316, "url": "http://patchwork.ozlabs.org/api/patches/2227316/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ext4/patch/20260423-case-sensitivity-v10-8-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-v10-8-c385d674a6cf@oracle.com>", "list_archive_url": null, "date": "2026-04-23T13:12:11", "name": "[v10,08/17] ext4: Report case sensitivity in fileattr_get", "commit_ref": null, "pull_url": null, "state": "not-applicable", "archived": false, "hash": "e034fdb7686fe449b4ddec76918d44c1b3d251df", "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-v10-8-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/2227316/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2227316/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <SRS0=eU9C=CW=vger.kernel.org=linux-ext4+bounces-16057-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=XC3zMZ8G;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=150.107.74.76; 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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=1776949962;\n\tbh=jXYqYekRjpF07wlPDKgx2XWDNqQtTHKbLiod79qFffg=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc:From;\n\tb=XC3zMZ8GXEPAPGuVPkpcEGJW/IWUfO9lT5X+da8jeEzG30DrtLhAa90rUVt9Gnx3h\n\t Yh7AnsqQoxVGIIhqTnnZbWpcjwN3ItAVSTFp8tiMrIJUWfD4R9OStiy0ZNAyId4XMw\n\t d2Z2L5hccCmf7zAV3nqUUdvoQprKmbcKdlOAgW40hdZuQX5OaPfH+A6rab0OZGvDox\n\t aDv0P/ZQd9E8C+/Pwl8FA05S6P2NtFlWHsLB8dFv7bB7fMTkseIbph+4Tjrtxq6euV\n\t wCsCmNbnex9K3PvwvS3S8q9VkGxuvMVnUOLmsezHOVvd1EDzUUpalew7yOLN8BACBt\n\t IegZt8Hz3IuLA==", "From": "Chuck Lever <cel@kernel.org>", "Date": "Thu, 23 Apr 2026 09:12:11 -0400", "Subject": "[PATCH v10 08/17] ext4: Report case sensitivity in 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-v10-8-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=1149;\n i=chuck.lever@oracle.com; h=from:subject:message-id;\n bh=TxMd9+19zfe1kcd7z7IWDwky99GfiXSk/tT0Rl2ZM5c=;\n b=owEBbQKS/ZANAwAKATNqszNvZn+XAcsmYgBp6hq01cfRhNAJt0xx2EbnMwGvHTygaBYN6aRTE\n GINZfCUwkSJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCaeoatAAKCRAzarMzb2Z/\n l+4aD/9AIIDkYsuxGwkaHb0alyjM31f5P4xoH9QnzDFp8NL/UVKvxCdSvFeMeyBHwVa7Fy9ruea\n zMwrMXaFVq2XZWeNySOA0xiFd4HT0xd854+HjYrlIEdnnKtj5zrn3FrAvE3n7mSq5YxhGF9pwhw\n 5RavDMmtW/5nOr3HYz1Gp7xrk3hPZOJ2uPXpSOVw9GMxNiotmNg0ZDwjDxSEMkM7+ScHLDGzMFR\n wLhw5l9Rs0mhNYWejSb2IQhDijmYO1Ym35ZiJjNu5ft4ChBGAuoxGL0m5/f8650C7D2PP+Uet9i\n r4Q+ALt7QWYX3HAPWpT2pMx8cFGUD25yODaeNdLKH5AiBlu8KtHiArKHxGo6nIDcxzr5RYhvmYp\n w5CIQChTJ12zqUt2vNfuYzcuNFQxah0Oy3lAmGkW7ZL+juq6mxvkPTy8PJDQvH8wLKBlWDHCpul\n 7a2TrzylW2pvpGiW96qRr6ZMwLsQLoWdZl+m5tbuBxniV9qHk/2Qw6yE/bwTx0MySJpVkZZgnZ4\n ty+BBTmKui8m5aOah8Uf621+mouo4Ve7WFdy1i4zWhVUDQgbHt5cn182HB0L7hN8xQrYTHqTyM2\n OKrOHQ/XIP5hQ1O6r2WRIOscUUUEfDJNxwOPDa/Lunw+phN71xW9DR540IhKBRXhREigJfqA7wH\n jFNwOPn3bVc/EfQ==", "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\nReport ext4's case sensitivity behavior via the FS_XFLAG_CASEFOLD\nflag. ext4 always preserves case at rest.\n\nCase sensitivity is a per-directory setting in ext4. If the queried\ninode is a casefolded directory, report case-insensitive; otherwise\nreport case-sensitive (standard POSIX behavior).\n\nReviewed-by: Jan Kara <jack@suse.cz>\nAcked-by: Theodore Ts'o <tytso@mit.edu>\nSigned-off-by: Chuck Lever <chuck.lever@oracle.com>\n---\n fs/ext4/ioctl.c | 7 +++++++\n 1 file changed, 7 insertions(+)", "diff": "diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c\nindex 1d0c3d4bdf47..d1d597a13eeb 100644\n--- a/fs/ext4/ioctl.c\n+++ b/fs/ext4/ioctl.c\n@@ -999,6 +999,13 @@ int ext4_fileattr_get(struct dentry *dentry, struct file_kattr *fa)\n \tif (ext4_has_feature_project(inode->i_sb))\n \t\tfa->fsx_projid = from_kprojid(&init_user_ns, ei->i_projid);\n \n+\t/*\n+\t * Case folding is a directory attribute in ext4. Set FS_XFLAG_CASEFOLD\n+\t * for directories with the casefold attribute; all other inodes use\n+\t * standard case-sensitive semantics.\n+\t */\n+\tif (IS_CASEFOLDED(inode))\n+\t\tfa->fsx_xflags |= FS_XFLAG_CASEFOLD;\n \treturn 0;\n }\n \n", "prefixes": [ "v10", "08/17" ] }