diff options
| author | Ying Xue <ying.xue@windriver.com> | 2014-04-21 10:55:47 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-04-22 21:17:53 -0400 |
| commit | 2231c5af451e4b7ae3cc56eaa4653af6ede51109 (patch) | |
| tree | 7c7e78e9adc9f746f64290530d40ce7a9b155fb7 /net/tipc/bearer.h | |
| parent | 7a2f7d18e79b09c5c5a65fb1fa0e31ad046b3116 (diff) | |
tipc: use RCU to protect media_ptr pointer
Now the media_ptr pointer is protected with tipc_net_lock write lock
on write side; tipc_net_lock read lock is used to read side. As the
part of effort of eliminating tipc_net_lock, we decide to adjust the
locking policy of media_ptr pointer protection: on write side, RTNL
lock is use while on read side RCU read lock is applied.
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Tested-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/bearer.h')
| -rw-r--r-- | net/tipc/bearer.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h index 2fa86bd67c0a..a983b3005e71 100644 --- a/net/tipc/bearer.h +++ b/net/tipc/bearer.h @@ -128,7 +128,7 @@ struct tipc_media { * care of initializing all other fields. */ struct tipc_bearer { - void *media_ptr; /* initalized by media */ + void __rcu *media_ptr; /* initalized by media */ u32 mtu; /* initalized by media */ struct tipc_media_addr addr; /* initalized by media */ char name[TIPC_MAX_BEARER_NAME]; |