diff options
| author | Takashi Iwai | 2010-08-18 15:17:30 +0200 |
|---|---|---|
| committer | Takashi Iwai | 2010-08-18 15:17:30 +0200 |
| commit | 6ab561c8aab2e4af535f09adbc6253f958536848 (patch) | |
| tree | 37846adb4ea106485720d113e252d71d615c23ed /net/sched/act_api.c | |
| parent | ALSA: usb: USB3 SuperSpeed sound support (diff) | |
| parent | ALSA: ISA: Remove snd-sgalaxy (diff) | |
| download | kernel-qcow2-linux-6ab561c8aab2e4af535f09adbc6253f958536848.tar.gz kernel-qcow2-linux-6ab561c8aab2e4af535f09adbc6253f958536848.tar.xz kernel-qcow2-linux-6ab561c8aab2e4af535f09adbc6253f958536848.zip | |
Merge branch 'topic/isa' into topic/misc
Diffstat (limited to 'net/sched/act_api.c')
| -rw-r--r-- | net/sched/act_api.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 972378f47f3c..23b25f89e7e0 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -26,6 +26,11 @@ #include <net/act_api.h> #include <net/netlink.h> +static void tcf_common_free_rcu(struct rcu_head *head) +{ + kfree(container_of(head, struct tcf_common, tcfc_rcu)); +} + void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo) { unsigned int h = tcf_hash(p->tcfc_index, hinfo->hmask); @@ -38,7 +43,11 @@ void tcf_hash_destroy(struct tcf_common *p, struct tcf_hashinfo *hinfo) write_unlock_bh(hinfo->lock); gen_kill_estimator(&p->tcfc_bstats, &p->tcfc_rate_est); - kfree(p); + /* + * gen_estimator est_timer() might access p->tcfc_lock + * or bstats, wait a RCU grace period before freeing p + */ + call_rcu(&p->tcfc_rcu, tcf_common_free_rcu); return; } } |