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authorKirill Tkhai <ktkhai@virtuozzo.com>2018-03-01 15:23:28 +0300
committerDavid S. Miller <davem@davemloft.net>2018-03-07 18:19:10 +0300
commit30855ffc29b972d3316e2adcf8029c00c36fad60 (patch)
treecbac1df04ca36f33c22cc6db718ff35732863b40 /net/core/net_namespace.c
parent0f3e9c97eb5a97972b0c0076a5cc01bb142f8e70 (diff)
downloadlinux-30855ffc29b972d3316e2adcf8029c00c36fad60.tar.xz
net: Make account struct net to memcg
The patch adds SLAB_ACCOUNT to flags of net_cachep cache, which enables accounting of struct net memory to memcg kmem. Since number of net_namespaces may be significant, user want to know, how much there were consumed, and control. Note, that we do not account net_generic to the same memcg, where net was accounted, moreover, we don't do this at all (*). We do not want the situation, when single memcg memory deficit prevents us to register new pernet_operations. (*)Even despite there is !current process accounting already available in linux-next. See kmalloc_memcg() there for the details. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/net_namespace.c')
-rw-r--r--net/core/net_namespace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 690e78c6af45..c340d5cfbdec 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -882,7 +882,7 @@ static int __init net_ns_init(void)
#ifdef CONFIG_NET_NS
net_cachep = kmem_cache_create("net_namespace", sizeof(struct net),
SMP_CACHE_BYTES,
- SLAB_PANIC, NULL);
+ SLAB_PANIC|SLAB_ACCOUNT, NULL);
/* Create workqueue for cleanup */
netns_wq = create_singlethread_workqueue("netns");