{"id":2228054,"url":"http://patchwork.ozlabs.org/api/patches/2228054/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260424-case-sensitivity-v11-4-de5619beddaf@oracle.com/","project":{"id":12,"url":"http://patchwork.ozlabs.org/api/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":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260424-case-sensitivity-v11-4-de5619beddaf@oracle.com>","list_archive_url":null,"date":"2026-04-25T01:53:06","name":"[v11,04/15] exfat: Implement fileattr_get for case sensitivity","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"0691397374acc26816da81c278ec61ae0ba05222","submitter":{"id":86689,"url":"http://patchwork.ozlabs.org/api/people/86689/?format=json","name":"Chuck Lever","email":"cel@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260424-case-sensitivity-v11-4-de5619beddaf@oracle.com/mbox/","series":[{"id":501416,"url":"http://patchwork.ozlabs.org/api/series/501416/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-cifs-client/list/?series=501416","date":"2026-04-25T01:53:02","name":"Exposing case folding behavior","version":11,"mbox":"http://patchwork.ozlabs.org/series/501416/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2228054/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2228054/checks/","tags":{},"related":[],"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=fozMK6S9;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; 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charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"<20260424-case-sensitivity-v11-4-de5619beddaf@oracle.com>","References":"<20260424-case-sensitivity-v11-0-de5619beddaf@oracle.com>","In-Reply-To":"<20260424-case-sensitivity-v11-0-de5619beddaf@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=2796;\n i=chuck.lever@oracle.com; h=from:subject:message-id;\n bh=Jrgq3TGYmS+gsjYQgXc1oI5YkxxrwLITLmwEPv8w32E=;\n b=owEBbQKS/ZANAwAKATNqszNvZn+XAcsmYgBp7B6QBuYz3NECRagQ5ROLT/1nvTP6F/YQBFkHh\n k+rXhvNmymJAjMEAAEKAB0WIQQosuWwEobfJDzyPv4zarMzb2Z/lwUCaewekAAKCRAzarMzb2Z/\n l04kD/9/XtL1PCnDsaBe6bqOf/yFrG0jpUzClM+mDrkjVvvvuGkvYYHioDSZBGQeEG/fJc2u/WK\n PQ4QMfQN6rtxj2xRrd5K3AFaApP2I7IZM9GoJBNVvZO72xHahvDZmkY3Qn35Igd6EbBS+KFewL8\n fMWtHZRLCBLOJGxVRbnfLkLokjnl5APRObRvqIUOkMBcn1YhoZfzDLvLzNDqqtD8y8kFl2OAVDe\n /R335GvPLyh7EmFLRtYvoOPYCSmt7YthR6xdbYx6p35j9HBp3TW2zn10aC3cHTaJWINg2aLOlgY\n CoeTKZC+bds8EvEc7NGViZR1FZ3Q0r1jwaoIh7V0KwZAuz01z4oXVWVJI+QOgNa8ARMHxvv5j6F\n cyfsGwj5z5oKVSSwkviuXbyZkcPlzys+kzkW0qqvzDCpUjfmW+7dizmAMwYGw58xxDY2Xi9wX1U\n TMcGgrZmmX4mFa+x92Aecdl9qv3Hu9VpvOSiwB3jMGhRvxSwifHcB+/cFc1L4ayh7G+GBDujBOj\n Hcr90oXLrjbguBPv48S1bbP7oXpFZMtHcnHEopKsWdMVCLTlpRXFOZjJfbgAEnyu8l1GLos/vs0\n xxFBvhwnA8gmiPMqtRjE4Lu5fiwtDdYlSlzVN8Vc0X3GTWFDkn3SKcrOcjOkVl5oNmVoV/u+8Gc\n 1WZsuX/riZO9Lzg==","X-Developer-Key":"i=chuck.lever@oracle.com; a=openpgp;\n fpr=28B2E5B01286DF243CF23EFE336AB3336F667F97"},"content":"From: Chuck Lever \n\nReport exFAT's case sensitivity behavior via the FS_XFLAG_CASEFOLD\nflag. exFAT is always case-insensitive (using an upcase table for\ncomparison) and always preserves case at rest.\n\nAcked-by: Namjae Jeon \nReviewed-by: Roland Mainz \nSigned-off-by: Chuck Lever \n---\n fs/exfat/exfat_fs.h | 2 ++\n fs/exfat/file.c | 18 ++++++++++++++++--\n fs/exfat/namei.c | 1 +\n 3 files changed, 19 insertions(+), 2 deletions(-)","diff":"diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h\nindex 89ef5368277f..aff4dcd4e75a 100644\n--- a/fs/exfat/exfat_fs.h\n+++ b/fs/exfat/exfat_fs.h\n@@ -496,6 +496,8 @@ int exfat_setattr(struct mnt_idmap *idmap, struct dentry *dentry,\n int exfat_getattr(struct mnt_idmap *idmap, const struct path *path,\n \t\t struct kstat *stat, unsigned int request_mask,\n \t\t unsigned int query_flags);\n+struct file_kattr;\n+int exfat_fileattr_get(struct dentry *dentry, struct file_kattr *fa);\n int exfat_file_fsync(struct file *file, loff_t start, loff_t end, int datasync);\n long exfat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);\n long exfat_compat_ioctl(struct file *filp, unsigned int cmd,\ndiff --git a/fs/exfat/file.c b/fs/exfat/file.c\nindex 354bdcfe4abc..91e5511945d1 100644\n--- a/fs/exfat/file.c\n+++ b/fs/exfat/file.c\n@@ -14,6 +14,7 @@\n #include \n #include \n #include \n+#include \n \n #include \"exfat_raw.h\"\n #include \"exfat_fs.h\"\n@@ -323,6 +324,18 @@ int exfat_getattr(struct mnt_idmap *idmap, const struct path *path,\n \treturn 0;\n }\n \n+int exfat_fileattr_get(struct dentry *dentry, struct file_kattr *fa)\n+{\n+\t/*\n+\t * exFAT compares filenames through an upcase table, so lookup\n+\t * is always case-insensitive. Long names are stored in UTF-16\n+\t * with case intact; CASENONPRESERVING stays clear.\n+\t */\n+\tfa->fsx_xflags |= FS_XFLAG_CASEFOLD;\n+\tfa->flags |= FS_CASEFOLD_FL;\n+\treturn 0;\n+}\n+\n int exfat_setattr(struct mnt_idmap *idmap, struct dentry *dentry,\n \t\t struct iattr *attr)\n {\n@@ -817,6 +830,7 @@ const struct file_operations exfat_file_operations = {\n };\n \n const struct inode_operations exfat_file_inode_operations = {\n-\t.setattr = exfat_setattr,\n-\t.getattr = exfat_getattr,\n+\t.setattr\t= exfat_setattr,\n+\t.getattr\t= exfat_getattr,\n+\t.fileattr_get\t= exfat_fileattr_get,\n };\ndiff --git a/fs/exfat/namei.c b/fs/exfat/namei.c\nindex 2c5636634b4a..94002e43db08 100644\n--- a/fs/exfat/namei.c\n+++ b/fs/exfat/namei.c\n@@ -1311,4 +1311,5 @@ const struct inode_operations exfat_dir_inode_operations = {\n \t.rename\t\t= exfat_rename,\n \t.setattr\t= exfat_setattr,\n \t.getattr\t= exfat_getattr,\n+\t.fileattr_get\t= exfat_fileattr_get,\n };\n","prefixes":["v11","04/15"]}