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| author | Jesse Gross <jesse@nicira.com> | 2015-01-02 18:26:03 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-04 22:21:33 -0500 |
| commit | 829a3ada9cc7d4c30fa61f8033403fb6c8f8092a (patch) | |
| tree | 89e2c3f0b5fe649dda54e9745f2ec413c6217a49 /include/net/geneve.h | |
| parent | 61f3cade763dca46127146a52d829e30b8f48921 (diff) | |
| download | linux-829a3ada9cc7d4c30fa61f8033403fb6c8f8092a.tar.gz linux-829a3ada9cc7d4c30fa61f8033403fb6c8f8092a.tar.bz2 linux-829a3ada9cc7d4c30fa61f8033403fb6c8f8092a.zip | |
geneve: Simplify locking.
The existing Geneve locking scheme was pulled over directly from
VXLAN. However, VXLAN has a number of built in mechanisms which make
the locking more complex and are unlikely to be necessary with Geneve.
This simplifies the locking to use a basic scheme of a mutex
when doing updates plus RCU on receive.
In addition to making the code easier to read, this also avoids the
possibility of a race when creating or destroying sockets since
UDP sockets and the list of Geneve sockets are protected by different
locks. After this change, the entire operation is atomic.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/geneve.h')
| -rw-r--r-- | include/net/geneve.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/geneve.h b/include/net/geneve.h index 56c7e1ac216a..b40f4affc4cb 100644 --- a/include/net/geneve.h +++ b/include/net/geneve.h @@ -73,7 +73,7 @@ struct geneve_sock { void *rcv_data; struct socket *sock; struct rcu_head rcu; - atomic_t refcnt; + int refcnt; struct udp_offload udp_offloads; }; |