fs: name case update method

smpfs and ncpfs want to update a live dentry name in-place. Rather than
have them open code the locking, provide a documented dcache API.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/staging/smbfs/cache.c b/drivers/staging/smbfs/cache.c
index dbb98658148b..dbd2e1df3ba9 100644
--- a/drivers/staging/smbfs/cache.c
+++ b/drivers/staging/smbfs/cache.c
@@ -145,8 +145,8 @@ smb_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
                         goto end_advance;
         } else {
                 hashed = 1;
-                memcpy((char *) newdent->d_name.name, qname->name,
-                       newdent->d_name.len);
+                /* dir i_mutex is locked because we're in readdir */
+                dentry_update_name_case(newdent, qname);
         }
 
         if (!newdent->d_inode) {