On 09/28/2012 08:27 PM, Fengguang Wu wrote:
> On Tue, Sep 25, 2012 at 02:18:20AM +0530, Srivatsa S. Bhat wrote:
>> From: Srivatsa S. Bhat <[email protected]>
>>
>> The CPU hotplug callback related to writeback calls writeback_set_ratelimit()
>> during every state change in the hotplug sequence. This is unnecessary
>> since num_online_cpus() changes only once during the entire hotplug operation.
>>
>> So invoke the function only once per hotplug, thereby avoiding the
>> unnecessary repetition of those costly calculations.
>>
>> Signed-off-by: Srivatsa S. Bhat <[email protected]>
>> ---
> Looks good to me. I'll include it in the writeback tree.
Hi Fengguang,
Could you tell me when inode->i_state & I_DIRTY will be set? thanks.
Regards,
Chen
>
> Thanks,
> Fengguang
>
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