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SubjectRe: [PATCH 2/2] ptrace,syscall_user_dispatch: checkpoint/restore support for SUD
On 02/14, Gregory Price wrote:
>
> +struct compat_ptrace_sud_config {
> + compat_ulong_t mode;
> + compat_uptr_t selector;
> + compat_ulong_t offset;
> + compat_ulong_t len;
> +};

...

> +int syscall_user_dispatch_get_config(struct task_struct *task, unsigned long size,
> + void __user *data)
> +{
> + struct syscall_user_dispatch *sd = &task->syscall_dispatch;
> +#ifdef CONFIG_COMPAT
> + if (unlikely(in_compat_syscall())) {
> + struct compat_ptrace_sud_config cfg32;
> +
> + if (size != sizeof(struct compat_ptrace_sud_config))
> + return -EINVAL;
> +

Horror ;) why?

See my reply to v9, just make

struct ptrace_sud_config {
__u8 mode;
__u64 selector;
__u64 offset;
__u64 len;
};

Oleg.

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