Re: Do we really need parallel resizer?

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On Fri, Jun 24, 2011 at 4:41 PM, Yongqiang Yang <xiaoqiangnk@xxxxxxxxx> wrote:
> Hi Andreas,
>
> I noticed that resize is protected by resize_lock.  Then parallel
> resizer works.  However, I think there is no need to make parallel
> resizer work.
>
> I think we can use an atomic integer 'resize_flag' instead of
> resize_lock,  resize_flag is set to 1 before the kernel does resizing
> work,  while resize_flag is set to 0 after the kernel finishes
> resizing work.  Resizing is allowed only if resize_flag is 0.  If
> resize_flag is 1, kernel returns -EBUSY to userspace.
Sorry, I made an error.  we should use an integer protected by resize_lock.

Yongqiang.
>
> What about your opinion?
>
> Yongqiang.
>
> --
> Best Wishes
> Yongqiang Yang
>



-- 
Best Wishes
Yongqiang Yang
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