Re: [PATCH v11 00/26] Speculative page faults

[Laurent Dufour]

Le 05/11/2018 Ã 11:42, Balbir Singh a ÃcritÂ:
> 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.