X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=lib%2Fradix-tree.c;h=1b7bf73141418f5f1427b14e806c9a9d4c6e7582;hb=f35d7633f5adfd7f93c0391b48ef78a14682e6b2;hp=61b8fb529ceff9f3762c9b92f0d9b742dd1303cf;hpb=9d3bc3d4a42242ff73ae28afb080508cf5070161;p=cascardo%2Flinux.git

diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 61b8fb529cef..1b7bf7314141 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -277,10 +277,11 @@ radix_tree_node_alloc(struct radix_tree_root *root)
 
 		/*
 		 * Even if the caller has preloaded, try to allocate from the
-		 * cache first for the new node to get accounted.
+		 * cache first for the new node to get accounted to the memory
+		 * cgroup.
 		 */
 		ret = kmem_cache_alloc(radix_tree_node_cachep,
-				       gfp_mask | __GFP_ACCOUNT | __GFP_NOWARN);
+				       gfp_mask | __GFP_NOWARN);
 		if (ret)
 			goto out;
 
@@ -303,8 +304,7 @@ radix_tree_node_alloc(struct radix_tree_root *root)
 		kmemleak_update_trace(ret);
 		goto out;
 	}
-	ret = kmem_cache_alloc(radix_tree_node_cachep,
-			       gfp_mask | __GFP_ACCOUNT);
+	ret = kmem_cache_alloc(radix_tree_node_cachep, gfp_mask);
 out:
 	BUG_ON(radix_tree_is_internal_node(ret));
 	return ret;
@@ -351,6 +351,12 @@ static int __radix_tree_preload(gfp_t gfp_mask, int nr)
 	struct radix_tree_node *node;
 	int ret = -ENOMEM;
 
+	/*
+	 * Nodes preloaded by one cgroup can be be used by another cgroup, so
+	 * they should never be accounted to any particular memory cgroup.
+	 */
+	gfp_mask &= ~__GFP_ACCOUNT;
+
 	preempt_disable();
 	rtp = this_cpu_ptr(&radix_tree_preloads);
 	while (rtp->nr < nr) {