From 990c74e3f41d7ae9711d3fb3e8b3f0d3088e0969 Mon Sep 17 00:00:00 2001 From: Vasily Averin Date: Mon, 19 Jul 2021 13:44:37 +0300 Subject: memcg: enable accounting for inet_bin_bucket cache net namespace can create up to 64K tcp and dccp ports and force kernel to allocate up to several megabytes of memory per netns for inet_bind_bucket objects. 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 Signed-off-by: David S. Miller --- net/dccp/proto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/dccp') diff --git a/net/dccp/proto.c b/net/dccp/proto.c index 7eb0fb231940..abb5c596a817 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -1126,7 +1126,7 @@ static int __init dccp_init(void) dccp_hashinfo.bind_bucket_cachep = kmem_cache_create("dccp_bind_bucket", sizeof(struct inet_bind_bucket), 0, - SLAB_HWCACHE_ALIGN, NULL); + SLAB_HWCACHE_ALIGN | SLAB_ACCOUNT, NULL); if (!dccp_hashinfo.bind_bucket_cachep) goto out_free_hashinfo2; -- cgit