From: Chuck Lever <[email protected]> Report exFAT's case sensitivity behavior via the FS_XFLAG_CASEFOLD flag. exFAT compares names through the volume's upcase table; in practice that table folds case, and case is preserved at rest.
Acked-by: Namjae Jeon <[email protected]> Reviewed-by: Roland Mainz <[email protected]> Signed-off-by: Chuck Lever <[email protected]> --- fs/exfat/exfat_fs.h | 2 ++ fs/exfat/file.c | 18 ++++++++++++++++-- fs/exfat/namei.c | 1 + 3 files changed, 19 insertions(+), 2 deletions(-) diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h index 89ef5368277f..aff4dcd4e75a 100644 --- a/fs/exfat/exfat_fs.h +++ b/fs/exfat/exfat_fs.h @@ -496,6 +496,8 @@ int exfat_setattr(struct mnt_idmap *idmap, struct dentry *dentry, int exfat_getattr(struct mnt_idmap *idmap, const struct path *path, struct kstat *stat, unsigned int request_mask, unsigned int query_flags); +struct file_kattr; +int exfat_fileattr_get(struct dentry *dentry, struct file_kattr *fa); int exfat_file_fsync(struct file *file, loff_t start, loff_t end, int datasync); long exfat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); long exfat_compat_ioctl(struct file *filp, unsigned int cmd, diff --git a/fs/exfat/file.c b/fs/exfat/file.c index 354bdcfe4abc..91e5511945d1 100644 --- a/fs/exfat/file.c +++ b/fs/exfat/file.c @@ -14,6 +14,7 @@ #include <linux/writeback.h> #include <linux/filelock.h> #include <linux/falloc.h> +#include <linux/fileattr.h> #include "exfat_raw.h" #include "exfat_fs.h" @@ -323,6 +324,18 @@ int exfat_getattr(struct mnt_idmap *idmap, const struct path *path, return 0; } +int exfat_fileattr_get(struct dentry *dentry, struct file_kattr *fa) +{ + /* + * exFAT compares filenames through an upcase table, so lookup + * is always case-insensitive. Long names are stored in UTF-16 + * with case intact; CASENONPRESERVING stays clear. + */ + fa->fsx_xflags |= FS_XFLAG_CASEFOLD; + fa->flags |= FS_CASEFOLD_FL; + return 0; +} + int exfat_setattr(struct mnt_idmap *idmap, struct dentry *dentry, struct iattr *attr) { @@ -817,6 +830,7 @@ const struct file_operations exfat_file_operations = { }; const struct inode_operations exfat_file_inode_operations = { - .setattr = exfat_setattr, - .getattr = exfat_getattr, + .setattr = exfat_setattr, + .getattr = exfat_getattr, + .fileattr_get = exfat_fileattr_get, }; diff --git a/fs/exfat/namei.c b/fs/exfat/namei.c index 2c5636634b4a..94002e43db08 100644 --- a/fs/exfat/namei.c +++ b/fs/exfat/namei.c @@ -1311,4 +1311,5 @@ const struct inode_operations exfat_dir_inode_operations = { .rename = exfat_rename, .setattr = exfat_setattr, .getattr = exfat_getattr, + .fileattr_get = exfat_fileattr_get, }; -- 2.53.0 _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
