From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E87E13EF0BF; Thu, 23 Apr 2026 13:12:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776949958; cv=none; b=il0gUvY1jIR0WUyZQStsi0fR2D/Az2RYIU0B41Sll7r/vN5Voku5y1ifwtCnliwRjgyCzsDr4MgF+VzV44YfCxf/XoTfWpk9IaGPllrwQVxNC+3okv4dkZkzQQLMDsq/BqACeFG1N/vb1LjGPyGQPlE9n73mkXiHmpX3apWlVFI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776949958; c=relaxed/simple; bh=MPKaRNRTQAJmLU63db2cpCz96vGgkp/OyFEdF/JZV/w=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=XuUJy9cqu/TCHSanJccqXHUf/N1AwJBX6dimC0fxErMYUh+v7D+IPIfxOa4oBAtpH1sbFS1xsgTwj4x3yeSdEHmvvsjGlOBMWfyFuYSrDMyEcnseDPDR9sQnpjb2ln9cogMjLkpvHDvUdD4g3Bz50nbzUnPOxCU7H/Dwgi66I2s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YbnX9qLG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YbnX9qLG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6C70CC2BCB5; Thu, 23 Apr 2026 13:12:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776949957; bh=MPKaRNRTQAJmLU63db2cpCz96vGgkp/OyFEdF/JZV/w=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=YbnX9qLGbLoSqLXFmEo+ZrHo2w8tkXdK9XGny3lPAid0kyV9xzsR5Sqa1mfdMSN+L USknez0InEzMtqR8YVgL07V/2drgpYixdd6KuryyUv3RzU+2AZqMP5mWiNX2q7STfu t3IpnghLgGFAut9+GIANa0Bk42uR4ydWwMohzVjOn9Z+2K46cyBbje/1jAxVJR+0tZ c6ZsWC1XxhBHxQSXd5888Y5fAAp3Ud+PYaRXVyp8xWU4UUf5FHq+1QNOkZfgJtjgcE J9jO+u+OUJzwr8qeoVgmm81xSqOS+6w4nNPUQoNgbgaLulJy4Sn3iGqKMAu5gfNJ/n 5nZk2watHTCSg== From: Chuck Lever Date: Thu, 23 Apr 2026 09:12:09 -0400 Subject: [PATCH v10 06/17] hfs: Implement fileattr_get for case sensitivity Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260423-case-sensitivity-v10-6-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 , Christian Brauner , Jan Kara Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-api@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, hirofumi@mail.parknet.co.jp, linkinjeon@kernel.org, sj1557.seo@samsung.com, yuezhang.mo@sony.com, almaz.alexandrovich@paragon-software.com, slava@dubeyko.com, glaubitz@physik.fu-berlin.de, frank.li@vivo.com, tytso@mit.edu, adilger.kernel@dilger.ca, cem@kernel.org, sfrench@samba.org, pc@manguebit.org, ronniesahlberg@gmail.com, sprasad@microsoft.com, trondmy@kernel.org, anna@kernel.org, jaegeuk@kernel.org, chao@kernel.org, hansg@kernel.org, senozhatsky@chromium.org, Chuck Lever X-Mailer: b4 0.16-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=2470; i=chuck.lever@oracle.com; h=from:subject:message-id; bh=sBcf0hJ0mC4j6QqtM39zu2705aCjapPtH74zbWqfwDA=; b=owEBbQKS/ZANAwAKATNqszNvZn+XAcsmYgBp6hqzzbILQEa/TWCIPDoZ+K7gVeC/4E0kXJGIh ohl6IE0CT6JAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCaeoaswAKCRAzarMzb2Z/ l08nEACzGceBSSh2NRK6+AaJyPS8eG6EhtvrS5qjpyxCXzNdl7+8BzsQZRfmZVdVg6X0fBBXcN7 fDo9uYYA9zVT/VI+HyniAVVh/NH5083YGjivayABq1vkCYfFSC/EOuwxcHIxTKlnSaTvVqdWAyG OZLikPvLkpymhBDRnhg3uJbel1ZB3HEowVEIsluR/N1tY1TpilMXGX5x8movwXRr40KNkyZf5Bo c388tMfQfUXcxF4+O9LUrM94ia84eXZ15RiNjgr4sv9ullebx7FW+46XmerKtZ1QtOeF1g1Jubl 9bApRY/nIU0s1UI2piJ16y/6SlwddqX649JfA9rrvkeBIgh3fXqtiOXm0XBunfE2czj2PgGRvZu y/Dyk/ySDYHQv/P6KqyR5phkYrdoP5vbfG9J2LyjYuZNj1sO0om7ImLAJZ1QE3KhsqWTA3Z5RI0 fSYHTGG0QF3sNlhdJPIv2Jt8zsj2LvuEEqQjDTFmWDwfJuSuJLWv4Nb+Fpiap9o4W627+mPab6r VTu2h+9fKGBBMQyvQa7W0NKTaqs946fcGiCX7xVtBd6VSUF43pmb+eBgynvFVSsAvqbjQrKULCc WX6d0+azDb5xpnzK3m54FXIUMeSNw/SDKLDGTy//M5NtxAEsYWQ7ehhsN1M4uykmvt/AenFhVKQ DE3qfCwqPuvVV6g== X-Developer-Key: i=chuck.lever@oracle.com; a=openpgp; fpr=28B2E5B01286DF243CF23EFE336AB3336F667F97 From: Chuck Lever Report HFS case sensitivity behavior via the FS_XFLAG_CASEFOLD flag. HFS is always case-insensitive (using Mac OS Roman case folding) and always preserves case at rest. Reviewed-by: Viacheslav Dubeyko Signed-off-by: Chuck Lever --- fs/hfs/dir.c | 1 + fs/hfs/hfs_fs.h | 2 ++ fs/hfs/inode.c | 13 +++++++++++++ 3 files changed, 16 insertions(+) diff --git a/fs/hfs/dir.c b/fs/hfs/dir.c index f5e7efe924e7..c4c6e1623f55 100644 --- a/fs/hfs/dir.c +++ b/fs/hfs/dir.c @@ -328,4 +328,5 @@ const struct inode_operations hfs_dir_inode_operations = { .rmdir = hfs_remove, .rename = hfs_rename, .setattr = hfs_inode_setattr, + .fileattr_get = hfs_fileattr_get, }; diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h index ac0e83f77a0f..1b23448c9a48 100644 --- a/fs/hfs/hfs_fs.h +++ b/fs/hfs/hfs_fs.h @@ -177,6 +177,8 @@ extern int hfs_get_block(struct inode *inode, sector_t block, extern const struct address_space_operations hfs_aops; extern const struct address_space_operations hfs_btree_aops; +struct file_kattr; +int hfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa); int hfs_write_begin(const struct kiocb *iocb, struct address_space *mapping, loff_t pos, unsigned int len, struct folio **foliop, void **fsdata); diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index 89b33a9d46d5..f9a10444353a 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "hfs_fs.h" #include "btree.h" @@ -699,6 +700,17 @@ static int hfs_file_fsync(struct file *filp, loff_t start, loff_t end, return ret; } +int hfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa) +{ + /* + * HFS compares filenames using Mac OS Roman case folding, so + * lookup is always case-insensitive. Names are stored on disk + * with case intact; CASENONPRESERVING stays clear. + */ + fa->fsx_xflags |= FS_XFLAG_CASEFOLD; + return 0; +} + static const struct file_operations hfs_file_operations = { .llseek = generic_file_llseek, .read_iter = generic_file_read_iter, @@ -715,4 +727,5 @@ static const struct inode_operations hfs_file_inode_operations = { .lookup = hfs_file_lookup, .setattr = hfs_inode_setattr, .listxattr = generic_listxattr, + .fileattr_get = hfs_fileattr_get, }; -- 2.53.0