lkml.org 
[lkml]   [2013]   [Mar]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCHv2, RFC 19/30] thp, mm: split huge page on mmap file page
Date
Hillf Danton wrote:
> On Fri, Mar 15, 2013 at 9:29 PM, Kirill A. Shutemov
> <kirill.shutemov@linux.intel.com> wrote:
> > Hillf Danton wrote:
> >> On Fri, Mar 15, 2013 at 1:50 AM, Kirill A. Shutemov
> >> <kirill.shutemov@linux.intel.com> wrote:
> >> >
> >> > We are not ready to mmap file-backed tranparent huge pages.
> >> >
> >> It is not on todo list either.
> >
> > Actually, following patches implement mmap for file-backed thp and this
> > split_huge_page() will catch only fallback cases.
> >
> I wonder if the effort we pay for THP cache is nuked by mmap.

I will not be nuked after patch 30/30.

Actually, it will be splited only if process tries to map hugepage with
unsuitable alignment.

--
Kirill A. Shutemov


\
 
 \ /
  Last update: 2013-03-15 15:21    [W:0.076 / U:0.584 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site