powerpc/spufs: convert userns uid/gid mount options to kuid/kgid

Acked-by: Jeremy Kerr <jk@ozlabs.org>
Tested-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index f3900427ffab..87ba7cf99cd7 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -620,12 +620,16 @@ spufs_parse_options(struct super_block *sb, char *options, struct inode *root)
                 case Opt_uid:
                         if (match_int(&args[0], &option))
                                 return 0;
-                        root->i_uid = option;
+                        root->i_uid = make_kuid(current_user_ns(), option);
+                        if (!uid_valid(root->i_uid))
+                                return 0;
                         break;
                 case Opt_gid:
                         if (match_int(&args[0], &option))
                                 return 0;
-                        root->i_gid = option;
+                        root->i_gid = make_kgid(current_user_ns(), option);
+                        if (!gid_valid(root->i_gid))
+                                return 0;
                         break;
                 case Opt_mode:
                         if (match_octal(&args[0], &option))