From 244e6c2d0724bc4908a1995804704bdee3b31528 Mon Sep 17 00:00:00 2001 From: Jarek Poplawski Date: Wed, 26 Nov 2008 15:24:32 -0800 Subject: [PATCH] pkt_sched: gen_estimator: Optimize gen_estimator_active() Since all other gen_estimator functions use bstats and rate_est params together, and searching for them is optimized now, let's use this also in gen_estimator_active(). The return type of gen_estimator_active() is changed to bool, and gen_find_node() parameters to const, btw. In tcf_act_police_locate() a check for ACT_P_CREATED is added before calling gen_estimator_active(). Signed-off-by: Jarek Poplawski Signed-off-by: David S. Miller --- include/net/gen_stats.h | 4 ++-- net/core/gen_estimator.c | 25 ++++++++----------------- net/sched/act_police.c | 4 +++- 3 files changed, 13 insertions(+), 20 deletions(-) diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h index dcf5bfa7d4f1..d136b5240ef2 100644 --- a/include/net/gen_stats.h +++ b/include/net/gen_stats.h @@ -45,6 +45,6 @@ extern void gen_kill_estimator(struct gnet_stats_basic *bstats, extern int gen_replace_estimator(struct gnet_stats_basic *bstats, struct gnet_stats_rate_est *rate_est, spinlock_t *stats_lock, struct nlattr *opt); -extern int gen_estimator_active(const struct gnet_stats_rate_est *rate_est); - +extern bool gen_estimator_active(const struct gnet_stats_basic *bstats, + const struct gnet_stats_rate_est *rate_est); #endif diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c index 3885550f0187..9cc9f95b109e 100644 --- a/net/core/gen_estimator.c +++ b/net/core/gen_estimator.c @@ -163,8 +163,9 @@ static void gen_add_node(struct gen_estimator *est) rb_insert_color(&est->node, &est_root); } -static struct gen_estimator *gen_find_node(struct gnet_stats_basic *bstats, - struct gnet_stats_rate_est *rate_est) +static +struct gen_estimator *gen_find_node(const struct gnet_stats_basic *bstats, + const struct gnet_stats_rate_est *rate_est) { struct rb_node *p = est_root.rb_node; @@ -301,26 +302,16 @@ EXPORT_SYMBOL(gen_replace_estimator); /** * gen_estimator_active - test if estimator is currently in use + * @bstats: basic statistics * @rate_est: rate estimator statistics * - * Returns 1 if estimator is active, and 0 if not. + * Returns true if estimator is active, and false if not. */ -int gen_estimator_active(const struct gnet_stats_rate_est *rate_est) +bool gen_estimator_active(const struct gnet_stats_basic *bstats, + const struct gnet_stats_rate_est *rate_est) { - int idx; - struct gen_estimator *e; - ASSERT_RTNL(); - for (idx=0; idx <= EST_MAX_INTERVAL; idx++) { - if (!elist[idx].timer.function) - continue; - - list_for_each_entry(e, &elist[idx].list, list) { - if (e->rate_est == rate_est) - return 1; - } - } - return 0; + return gen_find_node(bstats, rate_est) != NULL; } EXPORT_SYMBOL(gen_estimator_active); diff --git a/net/sched/act_police.c b/net/sched/act_police.c index c39f60cea6ee..5c72a116b1a4 100644 --- a/net/sched/act_police.c +++ b/net/sched/act_police.c @@ -183,7 +183,9 @@ static int tcf_act_police_locate(struct nlattr *nla, struct nlattr *est, if (R_tab == NULL) goto failure; - if (!est && !gen_estimator_active(&police->tcf_rate_est)) { + if (!est && (ret == ACT_P_CREATED || + !gen_estimator_active(&police->tcf_bstats, + &police->tcf_rate_est))) { err = -EINVAL; goto failure; } -- GitLab