[PATCH 3/6] struct page: add field for vm_struct
From: Christopher Lameter <hidden>
Date: 2018-02-01 00:00:36
Also in:
linux-mm, lkml
On Tue, 30 Jan 2018, Igor Stoppa wrote:
quoted hunk ↗ jump to hunk
@@ -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. -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html