linux segment

Baoquan He baoquan.he at
Thu Jun 20 09:40:22 EDT 2013

Since you asked this question by phone, we search your email address and
found your questions here.

On 06/20/2013 06:01 PM, Fan Yang wrote:
> Hi Baoquan:
> Thank you for your answer.
> That is to say the designer use __USER_DS here deliberately to improve the
> efficiency jump from  kernel space to user space?
> BTW,how can you find this email? I write this email On 10/24/2012.

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