Messages in this thread | | | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCHv2, RFC 19/30] thp, mm: split huge page on mmap file page | Date | Fri, 15 Mar 2013 15:45:28 +0200 (EET) |
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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
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