NTFS: Handle the recently introduced -ENAMETOOLONG return value from

      fs/ntfs/unistr.c::ntfs_nlstoucs() in fs/ntfs/namei.c::ntfs_lookup().

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>

2 files changed, 6 insertions, 5 deletions

diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog
index d20031587bbb..9fb08ef3a7f8 100644
--- a/fs/ntfs/ChangeLog
+++ b/fs/ntfs/ChangeLog
@@ -16,8 +16,6 @@ ToDo/Notes:
           inode having been discarded already.  Whether this can actually ever
           happen is unclear however so it is worth waiting until someone hits
           the problem.
-        - Enable the code for setting the NT4 compatibility flag when we start
-          making NTFS 1.2 specific modifications.
 
 2.1.27 - Various bug fixes and cleanups.
 
@@ -43,6 +41,8 @@ ToDo/Notes:
           have an index allocation attribute failed.
         - Add a missing call to flush_dcache_mft_record_page() in
           fs/ntfs/inode.c::ntfs_write_inode().
+        - Handle the recently introduced -ENAMETOOLONG return value from
+          fs/ntfs/unistr.c::ntfs_nlstoucs() in fs/ntfs/namei.c::ntfs_lookup().
 
 2.1.26 - Minor bug fixes and updates.
 
diff --git a/fs/ntfs/namei.c b/fs/ntfs/namei.c
index 78e0cf738e24..eddb2247cec5 100644
--- a/fs/ntfs/namei.c
+++ b/fs/ntfs/namei.c
@@ -115,7 +115,9 @@ static struct dentry *ntfs_lookup(struct inode *dir_ino, struct dentry *dent,
         uname_len = ntfs_nlstoucs(vol, dent->d_name.name, dent->d_name.len,
                         &uname);
         if (uname_len < 0) {
-                ntfs_error(vol->sb, "Failed to convert name to Unicode.");
+                if (uname_len != -ENAMETOOLONG)
+                        ntfs_error(vol->sb, "Failed to convert name to "
+                                        "Unicode.");
                 return ERR_PTR(uname_len);
         }
         mref = ntfs_lookup_inode_by_name(NTFS_I(dir_ino), uname, uname_len,
@@ -157,7 +159,7 @@ static struct dentry *ntfs_lookup(struct inode *dir_ino, struct dentry *dent,
                 /* Return the error code. */
                 return (struct dentry *)dent_inode;
         }
-        /* It is guaranteed that name is no longer allocated at this point. */
+        /* It is guaranteed that @name is no longer allocated at this point. */
         if (MREF_ERR(mref) == -ENOENT) {
                 ntfs_debug("Entry was not found, adding negative dentry.");
                 /* The dcache will handle negative entries. */
@@ -168,7 +170,6 @@ static struct dentry *ntfs_lookup(struct inode *dir_ino, struct dentry *dent,
         ntfs_error(vol->sb, "ntfs_lookup_ino_by_name() failed with error "
                         "code %i.", -MREF_ERR(mref));
         return ERR_PTR(MREF_ERR(mref));
-
         // TODO: Consider moving this lot to a separate function! (AIA)
 handle_name:
    {