Re: [RFC v2][PATCH]page_fault retry with NOPAGE_RETRY

[Ying Han]

Thanks Andrew. I have the patches for all the arches and i just need
to clean them up a little bit. I will send them to you ASAP.

--Ying

On Tue, Mar 31, 2009 at 3:00 PM, Andrew Morton
<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Fri, 5 Dec 2008 11:40:19 -0800
> Ying Han <yinghan@xxxxxxxxxx> wrote:
>
>> changelog[v2]:
>> - reduce the runtime overhead by extending the 'write' flag of
>>   handle_mm_fault() to indicate the retry hint.
>> - add another two branches in filemap_fault with retry logic.
>> - replace find_lock_page with find_lock_page_retry to make the code
>>   cleaner.
>>
>> todo:
>> - there is potential a starvation hole with the retry. By the time the
>>   retry returns, the pages might be released. we can make change by holding
>>   page reference as well as remembering what the page "was"(in case the
>>   file was truncated). any suggestion here are welcomed.
>>
>> I also made patches for all other arch. I am posting x86_64 here first and
>> i will post others by the time everyone feels comfortable of this patch.
>
> I'm about to send this into Linus.  What happened to the patches for
> other architectures?
>
> Please send them over when convenient and I'll work on getting them
> trickled out to arch maintainers, thanks.
>
>
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