From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vasily Averin Subject: [PATCH] memcg: enable accounting for pids in nested pid namespaces Date: Thu, 22 Apr 2021 08:44:15 +0300 Message-ID: <7b777e22-5b0d-7444-343d-92cbfae5f8b4@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=JRp6H7IPfoU4D8K87emG7TmGRk0/tu3o/Uod9peVFD0=; b=mM9hGPjSYiPNoNsKUuV AjkCi4SdfWsvTqyjNi3IVBabZ28feDEaEO/p13wzqAZ5vQtd0LeMCkxctPCFV2kLomCX5O97rBtPl X0PJGMTgIyTQDbtIkgvJ1Vta8mySG73Q7EYIkeBEfTvqj4XcNstPVBc/8h4hVnCyNWmLsRvdDoE= Content-Language: en-US List-ID: Content-Type: text/plain; charset="us-ascii" To: cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Michal Hocko Cc: Christian Brauner , Serge Hallyn , Roman Gushchin init_pid_ns.pid_cachep have enabled memcg accounting, though this setting was disabled for nested pid namespaces. Signed-off-by: Vasily Averin --- kernel/pid_namespace.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 6cd6715..a46a372 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -51,7 +51,8 @@ static struct kmem_cache *create_pid_cachep(unsigned int level) mutex_lock(&pid_caches_mutex); /* Name collision forces to do allocation under mutex. */ if (!*pkc) - *pkc = kmem_cache_create(name, len, 0, SLAB_HWCACHE_ALIGN, 0); + *pkc = kmem_cache_create(name, len, 0, + SLAB_HWCACHE_ALIGN | SLAB_ACCOUNT, 0); mutex_unlock(&pid_caches_mutex); /* current can fail, but someone else can succeed. */ return READ_ONCE(*pkc); -- 1.8.3.1