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authorOlof Johansson <olof@lixom.net>2012-09-16 22:24:53 -0400
committerOlof Johansson <olof@lixom.net>2012-09-16 22:24:53 -0400
commitd1226e8f98f130918265fb5b4dddcb60b783eb34 (patch)
tree5272a7828311a9b336d15c005704cf27b083d41c /net/core/netpoll.c
parentcccc277ba840f32d252a785ab1df686fdc0f49f5 (diff)
parent47d85ec2a23552fd3d8b56778a23a5a843c5b9b1 (diff)
Merge tag 'devel-omap-device-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc
Kevin Hilman <khilman@ti.com>: Updates for omap_device layer for v3.7. Allows omap_device layer to keep track of driver bound status in order to make more intelligent decisions about idling unused devices. * tag 'devel-omap-device-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP: omap_device: idle devices with no driver bound ARM: OMAP: omap_device: don't attempt late suspend if no driver bound ARM: OMAP: omap_device: keep track of driver bound status + sync to 3.6-rc5
Diffstat (limited to 'net/core/netpoll.c')
-rw-r--r--net/core/netpoll.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 346b1eb83a1f..e4ba3e70c174 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -168,24 +168,16 @@ static void poll_napi(struct net_device *dev)
168 struct napi_struct *napi; 168 struct napi_struct *napi;
169 int budget = 16; 169 int budget = 16;
170 170
171 WARN_ON_ONCE(!irqs_disabled());
172
173 list_for_each_entry(napi, &dev->napi_list, dev_list) { 171 list_for_each_entry(napi, &dev->napi_list, dev_list) {
174 local_irq_enable();
175 if (napi->poll_owner != smp_processor_id() && 172 if (napi->poll_owner != smp_processor_id() &&
176 spin_trylock(&napi->poll_lock)) { 173 spin_trylock(&napi->poll_lock)) {
177 rcu_read_lock_bh();
178 budget = poll_one_napi(rcu_dereference_bh(dev->npinfo), 174 budget = poll_one_napi(rcu_dereference_bh(dev->npinfo),
179 napi, budget); 175 napi, budget);
180 rcu_read_unlock_bh();
181 spin_unlock(&napi->poll_lock); 176 spin_unlock(&napi->poll_lock);
182 177
183 if (!budget) { 178 if (!budget)
184 local_irq_disable();
185 break; 179 break;
186 }
187 } 180 }
188 local_irq_disable();
189 } 181 }
190} 182}
191 183