On Fri 06-10-17 12:11:42, David Laight wrote:
> From: Michal Hocko
> > Sent: 06 October 2017 12:47
> > On Fri 06-10-17 11:10:14, David Laight wrote:
> > > From: Pavel Tatashin
> > > > Sent: 05 October 2017 22:11
> > > > vmemmap_alloc_block() will no longer zero the block, so zero memory
> > > > at
From: Michal Hocko
> Sent: 06 October 2017 12:47
> On Fri 06-10-17 11:10:14, David Laight wrote:
> > From: Pavel Tatashin
> > > Sent: 05 October 2017 22:11
> > > vmemmap_alloc_block() will no longer zero the block, so zero memory
> > > at its call sites for everything except struct pages. Struct p
On Fri 06-10-17 11:10:14, David Laight wrote:
> From: Pavel Tatashin
> > Sent: 05 October 2017 22:11
> > vmemmap_alloc_block() will no longer zero the block, so zero memory
> > at its call sites for everything except struct pages. Struct page memory
> > is zero'd by struct page initialization.
>
From: Pavel Tatashin
> Sent: 05 October 2017 22:11
> vmemmap_alloc_block() will no longer zero the block, so zero memory
> at its call sites for everything except struct pages. Struct page memory
> is zero'd by struct page initialization.
It seems dangerous to change an allocator to stop zeroing
vmemmap_alloc_block() will no longer zero the block, so zero memory
at its call sites for everything except struct pages. Struct page memory
is zero'd by struct page initialization.
Replace allocators in sprase-vmemmap to use the non-zeroing version. So,
we will get the performance improvement by
