uppercased 8.3 short names are stored. MSDOS with 'nocase'
+        * also preserves case.
+        */
+       if (sbi->options.isvfat)
+               case_sensitive = sbi->options.name_check == 's';
+       else
+               case_sensitive = sbi->options.nocase;
+
+       if (!case_sensitive) {
+               fa->fsx_xflags |= FS_XFLAG_CASEFOLD;
+               fa->flags |= FS_CASEFOLD_FL;
+               if (!sbi->options.isvfat)
+                       fa->fsx_xflags |= FS_XFLAG_CASENONPRESERVING;
+       }
+       return 0;
+}
+EXPORT_SYMBOL_GPL(fat_fileattr_get);
+
 int fat_getattr(struct mnt_idmap *idmap, const struct path *path,
                struct kstat *stat, u32 request_mask, unsigned int flags)
 {
@@ -575,5 +606,6 @@ EXPORT_SYMBOL_GPL(fat_setattr);
 const struct inode_operations fat_file_inode_operations = {
        .setattr        = fat_setattr,
        .getattr        = fat_getattr,
+       .fileattr_get   = fat_fileattr_get,
        .update_time    = fat_update_time,
 };
diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index 4cc65f330fb7..0fd2971ad4b1 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -644,6 +644,7 @@ static const struct inode_operations
msdos_dir_inode_operations = {
        .rename         = msdos_rename,
        .setattr        = fat_setattr,
        .getattr        = fat_getattr,
+       .fileattr_get   = fat_fileattr_get,
        .update_time    = fat_update_time,
 };

diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index 918b3756674c..e909447873e3 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -1185,6 +1185,7 @@ static const struct inode_operations
vfat_dir_inode_operations = {
        .rename         = vfat_rename2,
        .setattr        = fat_setattr,
        .getattr        = fat_getattr,
+       .fileattr_get   = fat_fileattr_get,
        .update_time    = fat_update_time,
 };


--
2.53.0




-- 
Cedric Blancher <cedric.blancher@gmail.com>
[https://plus.google.com/u/0/+CedricBlancher/]
Institute Pasteur