From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vasily Averin Subject: [PATCH v6 04/16] memcg: enable accounting for VLAN group array Date: Mon, 26 Jul 2021 22:00:24 +0300 Message-ID: <787536ed-6257-ac73-0ccc-c487f776671b@virtuozzo.com> References: <9bf9d9bd-03b1-2adb-17b4-5d59a86a9394@virtuozzo.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=Content-Type:MIME-Version:Date:Message-ID:Subject :From; bh=w+0FNs53pgnmzx96zi7TBJAdHiw/aP1PrzGmhZUmSkE=; b=kMRAY6JBbUXgmAw9dOW EYTUeFdnFpc6mIFKMIiT1BHbhnGqcvbMvhv4GcELknYw+UTxIxAo69Ha9jPl3hEosozXHCSDRTvXS Xg1U2IMvsUJ4aZoLEr3f7GlZG8Q0jwdJvb4qMKByFG4H0BZ7TvRZWIRvaP58qknKqpeg+IaEMuQ=; In-Reply-To: Content-Language: en-US List-ID: Content-Type: text/plain; charset="us-ascii" To: Andrew Morton Cc: cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Michal Hocko , Shakeel Butt , Johannes Weiner , Vladimir Davydov , Roman Gushchin , "David S. Miller" , Jakub Kicinski , netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org 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 --- 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