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Subject: Re: [PATCH v11 00/26] Speculative page faults
To:     Balbir Singh <bsingharora@gmail.com>,
        Laurent Dufour <ldufour@linux.vnet.ibm.com>
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From:   Laurent Dufour <ldufour@liunx.vnet.ibm.com>
Date:   Mon, 5 Nov 2018 17:08:45 +0100
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Le 05/11/2018 à 11:42, Balbir Singh a écrit :
> On Thu, May 17, 2018 at 01:06:07PM +0200, Laurent Dufour wrote:
>> This is a port on kernel 4.17 of the work done by Peter Zijlstra to handle
>> page fault without holding the mm semaphore [1].
>>
>> The idea is to try to handle user space page faults without holding the
>> mmap_sem. This should allow better concurrency for massively threaded
> 
> Question -- I presume mmap_sem (rw_semaphore implementation tested against)
> was qrwlock?

I don't think so, this series doesn't change the mmap_sem definition so 
it still belongs to the 'struct rw_semaphore'.

Laurent.