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| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-09-26 16:54:31 +0300 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-09-26 16:54:31 +0300 |
| commit | aaccf3c97418f169afdbb5855e9cbcbda34e90fd (patch) | |
| tree | 5d4207e67958bdbc23288cf30178692f5534e1a0 /net/core/gen_estimator.c | |
| parent | f39684524b391c5a7ed0ac44db4fec3357af1c5d (diff) | |
| parent | 6bf4ca7fbc85d80446ac01c0d1d77db4d91a6d84 (diff) | |
| download | linux-aaccf3c97418f169afdbb5855e9cbcbda34e90fd.tar.xz | |
Merge tag 'v4.19-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next
Sync with upstream (which now contains fbdev-v4.19 changes) to
prepare a base for fbdev-v4.20 changes.
Diffstat (limited to 'net/core/gen_estimator.c')
| -rw-r--r-- | net/core/gen_estimator.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c index 98fd12721221..e4e442d70c2d 100644 --- a/net/core/gen_estimator.c +++ b/net/core/gen_estimator.c @@ -112,7 +112,7 @@ static void est_timer(struct timer_list *t) * @bstats: basic statistics * @cpu_bstats: bstats per cpu * @rate_est: rate estimator statistics - * @stats_lock: statistics lock + * @lock: lock for statistics and control path * @running: qdisc running seqcount * @opt: rate estimator configuration TLV * @@ -128,7 +128,7 @@ static void est_timer(struct timer_list *t) int gen_new_estimator(struct gnet_stats_basic_packed *bstats, struct gnet_stats_basic_cpu __percpu *cpu_bstats, struct net_rate_estimator __rcu **rate_est, - spinlock_t *stats_lock, + spinlock_t *lock, seqcount_t *running, struct nlattr *opt) { @@ -154,19 +154,22 @@ int gen_new_estimator(struct gnet_stats_basic_packed *bstats, seqcount_init(&est->seq); intvl_log = parm->interval + 2; est->bstats = bstats; - est->stats_lock = stats_lock; + est->stats_lock = lock; est->running = running; est->ewma_log = parm->ewma_log; est->intvl_log = intvl_log; est->cpu_bstats = cpu_bstats; - if (stats_lock) + if (lock) local_bh_disable(); est_fetch_counters(est, &b); - if (stats_lock) + if (lock) local_bh_enable(); est->last_bytes = b.bytes; est->last_packets = b.packets; + + if (lock) + spin_lock_bh(lock); old = rcu_dereference_protected(*rate_est, 1); if (old) { del_timer_sync(&old->timer); @@ -179,6 +182,8 @@ int gen_new_estimator(struct gnet_stats_basic_packed *bstats, mod_timer(&est->timer, est->next_jiffies); rcu_assign_pointer(*rate_est, est); + if (lock) + spin_unlock_bh(lock); if (old) kfree_rcu(old, rcu); return 0; @@ -209,7 +214,7 @@ EXPORT_SYMBOL(gen_kill_estimator); * @bstats: basic statistics * @cpu_bstats: bstats per cpu * @rate_est: rate estimator statistics - * @stats_lock: statistics lock + * @lock: lock for statistics and control path * @running: qdisc running seqcount (might be NULL) * @opt: rate estimator configuration TLV * @@ -221,11 +226,11 @@ EXPORT_SYMBOL(gen_kill_estimator); int gen_replace_estimator(struct gnet_stats_basic_packed *bstats, struct gnet_stats_basic_cpu __percpu *cpu_bstats, struct net_rate_estimator __rcu **rate_est, - spinlock_t *stats_lock, + spinlock_t *lock, seqcount_t *running, struct nlattr *opt) { return gen_new_estimator(bstats, cpu_bstats, rate_est, - stats_lock, running, opt); + lock, running, opt); } EXPORT_SYMBOL(gen_replace_estimator); |