diff options
Diffstat (limited to 'net/core/netpoll.c')
| -rw-r--r-- | net/core/netpoll.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c index a1da97b5b30b..5f65b62346d4 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -768,6 +768,13 @@ int netpoll_setup(struct netpoll *np) if (err) goto flush; rtnl_unlock(); + + /* Make sure all NAPI polls which started before dev->npinfo + * was visible have exited before we start calling NAPI poll. + * NAPI skips locking if dev->npinfo is NULL. + */ + synchronize_rcu(); + return 0; flush: |