Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages

2014-10-07 Thread Andrea Arcangeli
Hi Kirill, On Tue, Oct 07, 2014 at 02:10:26PM +0300, Kirill A. Shutemov wrote: > On Fri, Oct 03, 2014 at 07:08:00PM +0200, Andrea Arcangeli wrote: > > There's one constraint enforced to allow this simplification: the > > source pages passed to remap_anon_pages must be mapped only in one > > vma, b

Re: [Qemu-devel] [PATCH 10/17] mm: rmap preparation for remap_anon_pages

2014-10-07 Thread Kirill A. Shutemov
On Fri, Oct 03, 2014 at 07:08:00PM +0200, Andrea Arcangeli wrote: > There's one constraint enforced to allow this simplification: the > source pages passed to remap_anon_pages must be mapped only in one > vma, but this is not a limitation when used to handle userland page > faults with MADV_USERFAU