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From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Kenny Simpson <theonetruekenny@gmail.com>,
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        Peter Zijlstra <peterz@infradead.org>, Dave Jones <davej@redhat.com>,
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Subject: Re: remap_file_pages() use
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Date: Mon, 19 May 2014 18:17:58 +0300 (EEST)
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Christoph Hellwig wrote:
> On Mon, May 19, 2014 at 06:02:38PM +0300, Kirill A. Shutemov wrote:
> > > Stop right there.  We found out about two real life users of
> > > remap_file_pages() already, without even committing the patches to warn
> > > about using it to any tree.
> > 
> > Who is the second here?	Oracle?
> 
> PyPy.
> 
> Oracle would be the third, although use of the feature is optional and
> fairly hard to opt in to, so I didn't count it.

IIUC PyPy uses the syscall in some early prototype and looks like guys are
okay to rework it to mmap() if default sysctl_max_map_count will be high
enough.

-- 
 Kirill A. Shutemov