ext3: don't try to resize if there are no reserved gdt blocks left

[safe/jmp/linux-2.6] / fs / ext3 / resize.c

diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 77278e9..78fdf38 100644 (file)
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -790,7 +790,8 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
 
        if (reserved_gdb || gdb_off == 0) {
                if (!EXT3_HAS_COMPAT_FEATURE(sb,
-                                            EXT3_FEATURE_COMPAT_RESIZE_INODE)){
+                                            EXT3_FEATURE_COMPAT_RESIZE_INODE)
+                   || !le16_to_cpu(es->s_reserved_gdt_blocks)) {
                        ext3_warning(sb, __func__,
                                     "No reserved GDT blocks, can't resize");
                        return -EPERM;