ovl: decode indexed dir file handles
Decoding an indexed dir file handle is done by looking up the file handle
in index dir by name and then decoding the upper dir from the index origin
file handle. The decoded upper path is used to lookup an overlay dentry of
the same path.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index 741a42d..6199bf7 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -439,7 +439,7 @@
}
/* Get upper dentry from index */
-static struct dentry *ovl_index_upper(struct ovl_fs *ofs, struct dentry *index)
+struct dentry *ovl_index_upper(struct ovl_fs *ofs, struct dentry *index)
{
struct ovl_fh *fh;
struct dentry *upper;