fuse: reject options on reconfigure via fsconfig(2)

[linux-2.6-microblaze.git] / fs / fuse / inode.c

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index ba201bf..bba7475 100644 (file)
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -477,12 +477,16 @@ static int fuse_parse_param(struct fs_context *fc, struct fs_parameter *param)
        struct fuse_fs_context *ctx = fc->fs_private;
        int opt;
 
-       /*
-        * Ignore options coming from mount(MS_REMOUNT) for backward
-        * compatibility.
-        */
-       if (fc->purpose == FS_CONTEXT_FOR_RECONFIGURE)
-               return 0;
+       if (fc->purpose == FS_CONTEXT_FOR_RECONFIGURE) {
+               /*
+                * Ignore options coming from mount(MS_REMOUNT) for backward
+                * compatibility.
+                */
+               if (fc->oldapi)
+                       return 0;
+
+               return invalfc(fc, "No changes allowed in reconfigure");
+       }
 
        opt = fs_parse(fc, fuse_fs_parameters, param, &result);
        if (opt < 0)