[patch 5/9] unprivileged mounts: allow unprivileged bind mounts

Dave Hansen haveblue at us.ibm.com
Tue Jan 8 10:12:38 PST 2008


On Tue, 2008-01-08 at 12:35 +0100, Miklos Szeredi wrote:
> +static int reserve_user_mount(void)
> +{
> +       int err = 0;
> +
> +       spin_lock(&vfsmount_lock);
> +       if (nr_user_mounts >= max_user_mounts && !capable(CAP_SYS_ADMIN))
> +               err = -EPERM;
> +       else
> +               nr_user_mounts++;
> +       spin_unlock(&vfsmount_lock);
> +       return err;
> +} 

Would -ENOSPC or -ENOMEM be a more descriptive error here?  

-- Dave



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