On 03/14/2014 11:14 PM, Benjamin LaHaise wrote:
......
What about the following patch? It adds additional reference to protect the page
avoid being freed when we reading it.
ps.It is applied on linux-next(3-13).
I think that's even worse than the spinlock approach since we'll end up
bouncing around the struct page's cacheline in addition to spinlock we're
going to end up taking anyways.
Hi Benjamin,
I'm sorry, I don't quite understand the cacheline problem you mentioned
above.
Would you please explain more ?
Thanks.
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