diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-09-13 17:18:38 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-09-13 17:18:38 +0200 |
| commit | 4553f0b90e1fd93b95a97918804528d4039201fc (patch) | |
| tree | e17524a262d3e0708479ad35edb706c3e1af5415 /net/core/netpoll.c | |
| parent | be267be8b191d5fac9f65a29e047470f364315eb (diff) | |
| parent | 7ece55a4a3a04abe37118b1d4fb0b702eeb1de4c (diff) | |
Merge branch 'core/rcu' into perf/core
Steve Rostedt asked for the merge of a single commit, into both
the RCU and the perf/tracing tree:
| Josh made a change to the tracing code that affects both the
| work Paul McKenney and I are currently doing. At the last
| Kernel Summit back in August, Linus said when such a case
| exists, it is best to make a separate branch based off of his
| tree and place the change there. This way, the repositories
| that need to share the change can both pull them in and the
| SHA1 will match for both. Whichever branch is pulled in first
| by Linus will also pull in the necessary change for the other
| branch as well.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/core/netpoll.c')
| -rw-r--r-- | net/core/netpoll.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 346b1eb83a1..e4ba3e70c17 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -168,24 +168,16 @@ static void poll_napi(struct net_device *dev) struct napi_struct *napi; int budget = 16; - WARN_ON_ONCE(!irqs_disabled()); - list_for_each_entry(napi, &dev->napi_list, dev_list) { - local_irq_enable(); if (napi->poll_owner != smp_processor_id() && spin_trylock(&napi->poll_lock)) { - rcu_read_lock_bh(); budget = poll_one_napi(rcu_dereference_bh(dev->npinfo), napi, budget); - rcu_read_unlock_bh(); spin_unlock(&napi->poll_lock); - if (!budget) { - local_irq_disable(); + if (!budget) break; - } } - local_irq_disable(); } } |