linux-kernel - [PATCH 4/5] vmalloc: allow to account vmalloc to memcg

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Message-ID: <7fe5e6dbb66fa7f0102c012c59ac10c25c6b2da7.1446924358.git.vdavydov@virtuozzo.com>
Date:	Sat, 7 Nov 2015 23:07:08 +0300
From:	Vladimir Davydov <vdavydov@...tuozzo.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>, Tejun Heo <tj@...nel.org>,
	Greg Thelen <gthelen@...gle.com>, <linux-mm@...ck.org>,
	<cgroups@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/5] vmalloc: allow to account vmalloc to memcg

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@...tuozzo.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

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