[PATCH v2 5/6] vmalloc: allow to account vmalloc to memcg

Vladimir Davydov
2015-11-10T18:34:50Z

This patch makes vmalloc family functions allocate vmalloc area pages
with alloc_kmem_pages so that if __GFP_ACCOUNT is set they will be
accounted to memcg. This is needed, at least, to account alloc_fdmem
allocations.

Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
---
mm/vmalloc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 9db9ef5e8481..259cfb32b7cf 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1476,7 +1476,7 @@ static void __vunmap(const void *addr, int deallocate_pages)
struct page *page = area->pages[i];

BUG_ON(!page);
- __free_page(page);
+ __free_kmem_pages(page, 0);
}

if (area->flags & VM_VPAGES)
@@ -1607,9 +1607,9 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
struct page *page;

if (node == NUMA_NO_NODE)
- page = alloc_page(alloc_mask);
+ page = alloc_kmem_pages(alloc_mask, order);
else
- page = alloc_pages_node(node, alloc_mask, order);
+ page = alloc_kmem_pages_node(node, alloc_mask, order);

if (unlikely(!page)) {
/* Successfully allocated i pages, free them in __vunmap() */
--
2.1.4