{"id":2230428,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2230428/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260429-case-sensitivity-v12-5-8057123bebe0@oracle.com/","project":{"id":12,"url":"http://patchwork.ozlabs.org/api/1.1/projects/12/?format=json","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":""},"msgid":"<20260429-case-sensitivity-v12-5-8057123bebe0@oracle.com>","date":"2026-04-29T18:07:16","name":"[v12,05/15] ntfs3: Implement fileattr_get for case sensitivity","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"2e98911b4eb49a942475a5c6c35c4290447c9e53","submitter":{"id":86689,"url":"http://patchwork.ozlabs.org/api/1.1/people/86689/?format=json","name":"Chuck Lever","email":"cel@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260429-case-sensitivity-v12-5-8057123bebe0@oracle.com/mbox/","series":[{"id":502123,"url":"http://patchwork.ozlabs.org/api/1.1/series/502123/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-cifs-client/list/?series=502123","date":"2026-04-29T18:07:11","name":"Exposing case folding behavior","version":12,"mbox":"http://patchwork.ozlabs.org/series/502123/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2230428/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2230428/checks/","tags":{},"headers":{"Return-Path":"\n ","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=H4hkcKdO;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; 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charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"<20260429-case-sensitivity-v12-5-8057123bebe0@oracle.com>","References":"<20260429-case-sensitivity-v12-0-8057123bebe0@oracle.com>","In-Reply-To":"<20260429-case-sensitivity-v12-0-8057123bebe0@oracle.com>","To":"Al Viro ,\n Christian Brauner , Jan Kara ","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 ,\n Roland Mainz ","X-Mailer":"b4 0.16-dev","X-Developer-Signature":"v=1; a=openpgp-sha256; l=3431;\n i=chuck.lever@oracle.com; h=from:subject:message-id;\n bh=UmPMiHkroOwooAuYrGTrmJ1qLD7CrIqd1OwFLzWWmkc=;\n b=owEBbQKS/ZANAwAKATNqszNvZn+XAcsmYgBp8kjcdWJaf/Ss0k77ld+dZmJerGJikmCOeLDmS\n LXIqqAiSzOJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCafJI3AAKCRAzarMzb2Z/\n l3vPD/9QjIf1La1fBNPrgqaxaDcBUitjem2nDH7tCSLtjBLhFLpBc6MlsFqrxIJ1AMrSeeHkZlK\n 1+Lud/Db8G1zwPNyGNFGBFzT9iL1nq5IruAYeOgD+ER4QmZ1qiZPrC2ozm0AnLMsWwJWu9frM7L\n 2DI3iAapDnlsfYI5w90UTlQjNFOAMAUu6tRaJnvDBX4wi6gtuw7bLoWcUDhmCauS7CvR7I/UrQ0\n HShoUYm7g8CHyhkRMmG8ES/eh2uqo1MUbVldlhxP2/gXE5CRPLjLLHL5m9LFcSlibOFvNeE1z0s\n eqsExEY2+XnPZL/Bz5V9vYzPmkNACW5R0ucV6Pc9O/jSvyfi0i32bvbThpBYlbzJkZCnCGGfjXC\n QXbdpo9pBLNc2F7jK5Pv/CaIMqtn0CjBD7pamsGss8KY32wjsbpnN+0SUw5Yn56h+T/mi4HW+Pw\n Yy42x7EIW546o4ZjLZB8xwaEyOm+OPtb443oHZSZeW+7/+bLB+kaS4idk7GhXSIbvBt0qgIse+0\n 95K9wSuiQPRJkC22fDfNk6fnK2dD6ZVsmxMLGlSbIvglFWruSVGTs2lQPqfvQLmwN1Vb+HKkN55\n Qs1U3Z8N9ISZMm18ooGPhF3u56nqpLdaoxeoNXXlqqwvl8nVu82yX96I/5Ty8Jx5VsVAEvw4ry5\n nWN5WYvpuCOXzKQ==","X-Developer-Key":"i=chuck.lever@oracle.com; a=openpgp;\n fpr=28B2E5B01286DF243CF23EFE336AB3336F667F97"},"content":"From: Chuck Lever \n\nReport NTFS case sensitivity behavior via the FS_XFLAG_CASEFOLD\nflag. NTFS always preserves case at rest.\n\nReviewed-by: Roland Mainz \nSigned-off-by: Chuck Lever \n---\n fs/ntfs3/file.c | 29 +++++++++++++++++++++++++++++\n fs/ntfs3/inode.c | 1 +\n fs/ntfs3/namei.c | 2 ++\n fs/ntfs3/ntfs_fs.h | 1 +\n 4 files changed, 33 insertions(+)","diff":"diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c\nindex b041639ab406..ad9350d7fc3f 100644\n--- a/fs/ntfs3/file.c\n+++ b/fs/ntfs3/file.c\n@@ -180,6 +180,34 @@ long ntfs_compat_ioctl(struct file *filp, u32 cmd, unsigned long arg)\n }\n #endif\n \n+/*\n+ * ntfs_fileattr_get - inode_operations::fileattr_get\n+ */\n+int ntfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa)\n+{\n+\tstruct inode *inode = d_inode(dentry);\n+\tstruct ntfs_sb_info *sbi = inode->i_sb->s_fs_info;\n+\n+\t/* Avoid any operation if inode is bad. */\n+\tif (unlikely(is_bad_ni(ntfs_i(inode))))\n+\t\treturn -EINVAL;\n+\n+\t/*\n+\t * NTFS preserves case (the default). Case sensitivity depends on\n+\t * mount options: with \"nocase\", NTFS is case-insensitive;\n+\t * otherwise it is case-sensitive.\n+\t */\n+\tif (sbi->options->nocase) {\n+\t\tfa->fsx_xflags |= FS_XFLAG_CASEFOLD;\n+\t\tfa->flags |= FS_CASEFOLD_FL;\n+\t}\n+\tif (inode->i_flags & S_IMMUTABLE) {\n+\t\tfa->fsx_xflags |= FS_XFLAG_IMMUTABLE;\n+\t\tfa->flags |= FS_IMMUTABLE_FL;\n+\t}\n+\treturn 0;\n+}\n+\n /*\n * ntfs_getattr - inode_operations::getattr\n */\n@@ -1547,6 +1575,7 @@ const struct inode_operations ntfs_file_inode_operations = {\n \t.get_acl\t= ntfs_get_acl,\n \t.set_acl\t= ntfs_set_acl,\n \t.fiemap\t\t= ntfs_fiemap,\n+\t.fileattr_get\t= ntfs_fileattr_get,\n };\n \n const struct file_operations ntfs_file_operations = {\ndiff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c\nindex 42af1abe17f8..a5ff04c2efd3 100644\n--- a/fs/ntfs3/inode.c\n+++ b/fs/ntfs3/inode.c\n@@ -2095,6 +2095,7 @@ const struct inode_operations ntfs_link_inode_operations = {\n \t.get_link\t= ntfs_get_link,\n \t.setattr\t= ntfs_setattr,\n \t.listxattr\t= ntfs_listxattr,\n+\t.fileattr_get\t= ntfs_fileattr_get,\n };\n \n const struct address_space_operations ntfs_aops = {\ndiff --git a/fs/ntfs3/namei.c b/fs/ntfs3/namei.c\nindex b2af8f695e60..eb241d7796ba 100644\n--- a/fs/ntfs3/namei.c\n+++ b/fs/ntfs3/namei.c\n@@ -518,6 +518,7 @@ const struct inode_operations ntfs_dir_inode_operations = {\n \t.getattr\t= ntfs_getattr,\n \t.listxattr\t= ntfs_listxattr,\n \t.fiemap\t\t= ntfs_fiemap,\n+\t.fileattr_get\t= ntfs_fileattr_get,\n };\n \n const struct inode_operations ntfs_special_inode_operations = {\n@@ -526,6 +527,7 @@ const struct inode_operations ntfs_special_inode_operations = {\n \t.listxattr\t= ntfs_listxattr,\n \t.get_acl\t= ntfs_get_acl,\n \t.set_acl\t= ntfs_set_acl,\n+\t.fileattr_get\t= ntfs_fileattr_get,\n };\n \n const struct dentry_operations ntfs_dentry_ops = {\ndiff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h\nindex bbf3b6a1dcbe..41db22d652c4 100644\n--- a/fs/ntfs3/ntfs_fs.h\n+++ b/fs/ntfs3/ntfs_fs.h\n@@ -529,6 +529,7 @@ bool dir_is_empty(struct inode *dir);\n extern const struct file_operations ntfs_dir_operations;\n \n /* Globals from file.c */\n+int ntfs_fileattr_get(struct dentry *dentry, struct file_kattr *fa);\n int ntfs_getattr(struct mnt_idmap *idmap, const struct path *path,\n \t\t struct kstat *stat, u32 request_mask, u32 flags);\n int ntfs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,\n","prefixes":["v12","05/15"]}