[Devel] [PATCH rh7 11/9] fs: fix accounting pipe buffers to kmemcg

Vladimir Davydov vdavydov at virtuozzo.com
Fri Apr 29 08:05:02 PDT 2016


After we switched to the whitelist kmem accounting design, using
alloc_kmem_pages is not enough for the new page to be accounted -
one must also pass __GFP_ACCOUNT in gfp flags.

Signed-off-by: Vladimir Davydov <vdavydov at virtuozzo.com>
---
 fs/pipe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/pipe.c b/fs/pipe.c
index 57aa78e7c63e..d038ff89a43f 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -590,7 +590,7 @@ redo1:
 			size_t remaining;
 
 			if (!page) {
-				page = alloc_kmem_pages(GFP_HIGHUSER, 0);
+				page = alloc_kmem_pages(GFP_HIGHUSER | __GFP_ACCOUNT, 0);
 				if (unlikely(!page)) {
 					ret = ret ? : -ENOMEM;
 					break;
-- 
2.1.4



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