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authorEric W. Biederman <ebiederm@xmission.com>2009-11-29 15:45:58 +0000
committerDavid S. Miller <davem@davemloft.net>2009-12-01 16:15:50 -0800
commita5ee155136b4a8f4ab0e4c9c064b661da475e298 (patch)
tree10c113756ff0dcc860735d96ed141701bffa3476 /include
parent5a5b6f6f62ac684a5856121d8cffd3c3253dc890 (diff)
net: NETDEV_UNREGISTER_PERNET -> NETDEV_UNREGISTER_BATCH
The motivation for an additional notifier in batched netdevice notification (rt_do_flush) only needs to be called once per batch not once per namespace. For further batching improvements I need a guarantee that the netdevices are unregistered in order allowing me to unregister an all of the network devices in a network namespace at the same time with the guarantee that the loopback device is really and truly unregistered last. Additionally it appears that we moved the route cache flush after the final synchronize_net, which seems wrong and there was no explanation. So I have restored the original location of the final synchronize_net. Cc: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/notifier.h2
-rw-r--r--include/net/route.h1
2 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index b0c3671d463c..fee6c2f68075 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -202,7 +202,7 @@ static inline int notifier_to_errno(int ret)
#define NETDEV_BONDING_OLDTYPE 0x000E
#define NETDEV_BONDING_NEWTYPE 0x000F
#define NETDEV_POST_INIT 0x0010
-#define NETDEV_UNREGISTER_PERNET 0x0011
+#define NETDEV_UNREGISTER_BATCH 0x0011
#define SYS_DOWN 0x0001 /* Notify of system down */
#define SYS_RESTART SYS_DOWN
diff --git a/include/net/route.h b/include/net/route.h
index cfb4c071a136..bce6dd68d27b 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -108,6 +108,7 @@ extern int ip_rt_init(void);
extern void ip_rt_redirect(__be32 old_gw, __be32 dst, __be32 new_gw,
__be32 src, struct net_device *dev);
extern void rt_cache_flush(struct net *net, int how);
+extern void rt_cache_flush_batch(void);
extern int __ip_route_output_key(struct net *, struct rtable **, const struct flowi *flp);
extern int ip_route_output_key(struct net *, struct rtable **, struct flowi *flp);
extern int ip_route_output_flow(struct net *, struct rtable **rp, struct flowi *flp, struct sock *sk, int flags);