diff options
| -rw-r--r-- | fs/ramfs/inode.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index c24f1e10b946..8f7fe323e049 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -247,7 +247,12 @@ struct dentry *ramfs_mount(struct file_system_type *fs_type, static struct dentry *rootfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { - return mount_nodev(fs_type, flags|MS_NOUSER, data, ramfs_fill_super); + static unsigned long once; + + if (test_and_set_bit(1, &once)) + return ERR_PTR(-ENODEV); + + return mount_nodev(fs_type, flags, data, ramfs_fill_super); } static void ramfs_kill_sb(struct super_block *sb) |