On 10/03/2017 09:19 AM, Michal Hocko wrote:
On Wed 20-09-17 16:17:14, Pavel Tatashin wrote:
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 zeroing the memory in parallel
when struct pages are zeroed.
Is it possible to merge this patch with http://lkml.kernel.org/r/20170920201714.19817-7-pasha.tatashin@xxxxxxxxxx
Yes, I will do that. It would also require re-arranging
[PATCH v9 07/12] sparc64: optimized struct page zeroing
optimization to come after this patch.
Pasha
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