Thread (1 message) 1 message, 1 author, 2021-07-26
DORMANTno replies

[PATCH v6 04/16] memcg: enable accounting for VLAN group array

From: Vasily Averin <hidden>
Date: 2021-07-26 19:00:57
Also in: cgroups, lkml
Subsystem: networking [general], the rest · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

vlan array consume up to 8 pages of memory per net device.

It makes sense to account for them to restrict the host's memory
consumption from inside the memcg-limited container.

Signed-off-by: Vasily Averin <redacted>
---
 net/8021q/vlan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 4cdf841..55275ef 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -67,7 +67,7 @@ static int vlan_group_prealloc_vid(struct vlan_group *vg,
 		return 0;
 
 	size = sizeof(struct net_device *) * VLAN_GROUP_ARRAY_PART_LEN;
-	array = kzalloc(size, GFP_KERNEL);
+	array = kzalloc(size, GFP_KERNEL_ACCOUNT);
 	if (array == NULL)
 		return -ENOBUFS;
 
-- 
1.8.3.1
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