From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Srivatsa S. Bhat" Subject: [PATCH 1/2] netprio_cgroup: Remove update_netdev_tables() since it is unnecessary Date: Tue, 11 Sep 2012 16:52:31 +0530 Message-ID: <20120911112231.13852.61794.stgit@srivatsabhat.in.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: john.r.fastabend@intel.com, gaofeng@cn.fujitsu.com, eric.dumazet@gmail.com, mark.d.rustad@intel.com, lizefan@huawei.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "Srivatsa S. Bhat" To: davem@davemloft.net, nhorman@tuxdriver.com Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org The update_netdev_tables() function appears to be unnecessary, since the write_update_netdev_table() function will adjust the priomaps as and when required anyway. So drop the usage of update_netdev_tables() entirely. Signed-off-by: Srivatsa S. Bhat --- net/core/netprio_cgroup.c | 32 -------------------------------- 1 files changed, 0 insertions(+), 32 deletions(-) diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c index c75e3f9..fd339bb0 100644 --- a/net/core/netprio_cgroup.c +++ b/net/core/netprio_cgroup.c @@ -109,32 +109,6 @@ static int write_update_netdev_table(struct net_device *dev) return ret; } -static int update_netdev_tables(void) -{ - int ret = 0; - struct net_device *dev; - u32 max_len; - struct netprio_map *map; - - rtnl_lock(); - max_len = atomic_read(&max_prioidx) + 1; - for_each_netdev(&init_net, dev) { - map = rtnl_dereference(dev->priomap); - /* - * don't allocate priomap if we didn't - * change net_prio.ifpriomap (map == NULL), - * this will speed up skb_update_prio. - */ - if (map && map->priomap_len < max_len) { - ret = extend_netdev_table(dev, max_len); - if (ret < 0) - break; - } - } - rtnl_unlock(); - return ret; -} - static struct cgroup_subsys_state *cgrp_create(struct cgroup *cgrp) { struct cgroup_netprio_state *cs; @@ -153,12 +127,6 @@ static struct cgroup_subsys_state *cgrp_create(struct cgroup *cgrp) goto out; } - ret = update_netdev_tables(); - if (ret < 0) { - put_prioidx(cs->prioidx); - goto out; - } - return &cs->css; out: kfree(cs);