ovl: add debug print to ovl_do_getxattr()

It was the only ovl_do helper missing it.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 2322f85..d1e08d8 100644 (file)
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -186,7 +186,12 @@ static inline ssize_t ovl_do_getxattr(struct ovl_fs *ofs, struct dentry *dentry,
                                      size_t size)
 {
        const char *name = ovl_xattr(ofs, ox);
-       return vfs_getxattr(&init_user_ns, dentry, name, value, size);
+       int err = vfs_getxattr(&init_user_ns, dentry, name, value, size);
+       int len = (value && err > 0) ? err : 0;
+
+       pr_debug("getxattr(%pd2, \"%s\", \"%*pE\", %zu, 0) = %i\n",
+                dentry, name, min(len, 48), value, size, err);
+       return err;
 }
 
 static inline int ovl_do_setxattr(struct ovl_fs *ofs, struct dentry *dentry,