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| author | Dave Airlie <airlied@redhat.com> | 2016-11-07 09:37:09 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-11-07 09:37:09 +1000 |
| commit | 7b624ad8fea1be7ff4c22643e212191aa6a2a3c2 (patch) | |
| tree | 41d0357d3259868cd85521c3fb9578cd2fc13831 /net/core/pktgen.c | |
| parent | dc345c46774bc150ab852d2c74ee6542de438d46 (diff) | |
| parent | bc33b0ca11e3df467777a4fa7639ba488c9d4911 (diff) | |
| download | linux-7b624ad8fea1be7ff4c22643e212191aa6a2a3c2.tar.bz2 | |
Backmerge tag 'v4.9-rc4' into drm-next
Linux 4.9-rc4
This is needed for nouveau development.
Diffstat (limited to 'net/core/pktgen.c')
| -rw-r--r-- | net/core/pktgen.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 5219a9e2127a..306b8f0e03c1 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -216,8 +216,8 @@ #define M_QUEUE_XMIT 2 /* Inject packet into qdisc */ /* If lock -- protects updating of if_list */ -#define if_lock(t) spin_lock(&(t->if_lock)); -#define if_unlock(t) spin_unlock(&(t->if_lock)); +#define if_lock(t) mutex_lock(&(t->if_lock)); +#define if_unlock(t) mutex_unlock(&(t->if_lock)); /* Used to help with determining the pkts on receive */ #define PKTGEN_MAGIC 0xbe9be955 @@ -423,7 +423,7 @@ struct pktgen_net { }; struct pktgen_thread { - spinlock_t if_lock; /* for list of devices */ + struct mutex if_lock; /* for list of devices */ struct list_head if_list; /* All device here */ struct list_head th_list; struct task_struct *tsk; @@ -2010,11 +2010,13 @@ static void pktgen_change_name(const struct pktgen_net *pn, struct net_device *d { struct pktgen_thread *t; + mutex_lock(&pktgen_thread_lock); + list_for_each_entry(t, &pn->pktgen_threads, th_list) { struct pktgen_dev *pkt_dev; - rcu_read_lock(); - list_for_each_entry_rcu(pkt_dev, &t->if_list, list) { + if_lock(t); + list_for_each_entry(pkt_dev, &t->if_list, list) { if (pkt_dev->odev != dev) continue; @@ -2029,8 +2031,9 @@ static void pktgen_change_name(const struct pktgen_net *pn, struct net_device *d dev->name); break; } - rcu_read_unlock(); + if_unlock(t); } + mutex_unlock(&pktgen_thread_lock); } static int pktgen_device_event(struct notifier_block *unused, @@ -3762,7 +3765,7 @@ static int __net_init pktgen_create_thread(int cpu, struct pktgen_net *pn) return -ENOMEM; } - spin_lock_init(&t->if_lock); + mutex_init(&t->if_lock); t->cpu = cpu; INIT_LIST_HEAD(&t->if_list); |