On Mon, Nov 12, 2018 at 10:44:40AM -0500, Tony Battersby wrote:
> dma_pool_free() scales poorly when the pool contains many pages because
> pool_find_page() does a linear scan of all allocated pages. Improve its
> scalability by replacing the linear scan with virt_to_page() and storing
> dmapool p
dma_pool_free() scales poorly when the pool contains many pages because
pool_find_page() does a linear scan of all allocated pages. Improve its
scalability by replacing the linear scan with virt_to_page() and storing
dmapool private data directly in 'struct page', thereby eliminating
'struct dma_p
