From: Vincent Guittot Date: Thu, 2 Nov 2017 15:16:07 +0000 (+0100) Subject: netfilter: conntrack: use power efficient workqueue X-Git-Tag: v4.19~2168^2~100^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0984d427c1d3cb2aa882c9ad9e787ba973cf2915;p=platform%2Fkernel%2Flinux-rpi.git netfilter: conntrack: use power efficient workqueue conntrack uses the bounded system_long_wq workqueue for its works that don't have to run on the cpu they have been queued. Using bounded workqueue prevents the scheduler to make smart decision about the best place to schedule the work. This patch replaces system_long_wq with system_power_efficient_wq. the work stays bounded to a cpu by default unless the CONFIG_WQ_POWER_EFFICIENT is enable. In the latter case, the work can be scheduled on the best cpu from a power or a performance point of view. Signed-off-by: Vincent Guittot Signed-off-by: Pablo Neira Ayuso --- diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 0e51694..5749fca 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -1083,7 +1083,7 @@ static void gc_worker(struct work_struct *work) next_run = gc_work->next_gc_run; gc_work->last_bucket = i; gc_work->early_drop = false; - queue_delayed_work(system_long_wq, &gc_work->dwork, next_run); + queue_delayed_work(system_power_efficient_wq, &gc_work->dwork, next_run); } static void conntrack_gc_work_init(struct conntrack_gc_work *gc_work) @@ -2089,7 +2089,7 @@ int nf_conntrack_init_start(void) goto err_proto; conntrack_gc_work_init(&conntrack_gc_work); - queue_delayed_work(system_long_wq, &conntrack_gc_work.dwork, HZ); + queue_delayed_work(system_power_efficient_wq, &conntrack_gc_work.dwork, HZ); return 0;