On (23/10/18 19:31), Mike Kravetz wrote: > Allocation of a hugetlb page for the hugetlb pool is done by the routine > alloc_pool_huge_page. This routine will allocate contiguous pages from > a low level allocator, prep the pages for usage as a hugetlb page and > then add the resulting hugetlb page to the pool. > > In the 'prep' stage, optional vmemmap optimization is done. For > performance reasons we want to perform vmemmap optimization on multiple > hugetlb pages at once. To do this, restructure the hugetlb pool > allocation code such that vmemmap optimization can be isolated and later > batched. > > The code to allocate hugetlb pages from bootmem was also modified to > allow batching. > > No functional changes, only code restructure. > > Signed-off-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Tested-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
