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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-20 13:43:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-20 13:43:21 -0700
commit06f4e926d256d902dd9a53dcb400fd74974ce087 (patch)
tree0b438b67f5f0eff6fd617bc497a9dace6164a488 /net/802
parent8e7bfcbab3825d1b404d615cb1b54f44ff81f981 (diff)
parentd93515611bbc70c2fe4db232e5feb448ed8e4cc9 (diff)
downloadop-kernel-dev-06f4e926d256d902dd9a53dcb400fd74974ce087.zip
op-kernel-dev-06f4e926d256d902dd9a53dcb400fd74974ce087.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits) macvlan: fix panic if lowerdev in a bond tg3: Add braces around 5906 workaround. tg3: Fix NETIF_F_LOOPBACK error macvlan: remove one synchronize_rcu() call networking: NET_CLS_ROUTE4 depends on INET irda: Fix error propagation in ircomm_lmp_connect_response() irda: Kill set but unused variable 'bytes' in irlan_check_command_param() irda: Kill set but unused variable 'clen' in ircomm_connect_indication() rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport() be2net: Kill set but unused variable 'req' in lancer_fw_download() irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication() atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined. rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer(). rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler() rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection() rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window() pkt_sched: Kill set but unused variable 'protocol' in tc_classify() isdn: capi: Use pr_debug() instead of ifdefs. tg3: Update version to 3.119 tg3: Apply rx_discards fix to 5719/5720 ... Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c as per Davem.
Diffstat (limited to 'net/802')
-rw-r--r--net/802/garp.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/net/802/garp.c b/net/802/garp.c
index c1df2da..f8300a8 100644
--- a/net/802/garp.c
+++ b/net/802/garp.c
@@ -544,6 +544,11 @@ static int garp_init_port(struct net_device *dev)
return 0;
}
+static void garp_kfree_rcu(struct rcu_head *head)
+{
+ kfree(container_of(head, struct garp_port, rcu));
+}
+
static void garp_release_port(struct net_device *dev)
{
struct garp_port *port = rtnl_dereference(dev->garp_port);
@@ -554,8 +559,7 @@ static void garp_release_port(struct net_device *dev)
return;
}
rcu_assign_pointer(dev->garp_port, NULL);
- synchronize_rcu();
- kfree(port);
+ call_rcu(&port->rcu, garp_kfree_rcu);
}
int garp_init_applicant(struct net_device *dev, struct garp_application *appl)
@@ -599,6 +603,11 @@ err1:
}
EXPORT_SYMBOL_GPL(garp_init_applicant);
+static void garp_app_kfree_rcu(struct rcu_head *head)
+{
+ kfree(container_of(head, struct garp_applicant, rcu));
+}
+
void garp_uninit_applicant(struct net_device *dev, struct garp_application *appl)
{
struct garp_port *port = rtnl_dereference(dev->garp_port);
@@ -607,7 +616,6 @@ void garp_uninit_applicant(struct net_device *dev, struct garp_application *appl
ASSERT_RTNL();
rcu_assign_pointer(port->applicants[appl->type], NULL);
- synchronize_rcu();
/* Delete timer and generate a final TRANSMIT_PDU event to flush out
* all pending messages before the applicant is gone. */
@@ -617,7 +625,7 @@ void garp_uninit_applicant(struct net_device *dev, struct garp_application *appl
garp_queue_xmit(app);
dev_mc_del(dev, appl->proto.group_address);
- kfree(app);
+ call_rcu(&app->rcu, garp_app_kfree_rcu);
garp_release_port(dev);
}
EXPORT_SYMBOL_GPL(garp_uninit_applicant);
@@ -635,3 +643,9 @@ void garp_unregister_application(struct garp_application *appl)
stp_proto_unregister(&appl->proto);
}
EXPORT_SYMBOL_GPL(garp_unregister_application);
+
+static void __exit garp_cleanup_module(void)
+{
+ rcu_barrier(); /* Wait for completion of call_rcu()'s */
+}
+module_exit(garp_cleanup_module);
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