Messages in this thread | | | Date | Wed, 31 Jan 2018 18:00:36 -0600 (CST) | From | Christopher Lameter <> | Subject | Re: [PATCH 3/6] struct page: add field for vm_struct |
| |
On Tue, 30 Jan 2018, Igor Stoppa wrote:
> @@ -1769,6 +1774,9 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align, > > kmemleak_vmalloc(area, size, gfp_mask); > > + for (page_counter = 0; page_counter < area->nr_pages; page_counter++) > + area->pages[page_counter]->area = area; > + > return addr;
Well this introduces significant overhead for large sized allocation. Does this not matter because the areas are small?
Would it not be better to use compound page allocations here? page_head(whatever) gets you the head page where you can store all sorts of information about the chunk of memory.
| |