[AF_UNIX]: Make socket locking much less confusing.

The unix_state_*() locking macros imply that there is some
rwlock kind of thing going on, but the implementation is
actually a spinlock which makes the code more confusing than
it needs to be.

So use plain unix_state_lock and unix_state_unlock.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 5 deletions

diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index c0398f5a8cb9..65f49fd7deff 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -62,13 +62,11 @@ struct unix_skb_parms {
 #define UNIXCREDS(skb)  (&UNIXCB((skb)).creds)
 #define UNIXSID(skb)    (&UNIXCB((skb)).secid)
 
-#define unix_state_rlock(s)     spin_lock(&unix_sk(s)->lock)
-#define unix_state_runlock(s)   spin_unlock(&unix_sk(s)->lock)
-#define unix_state_wlock(s)     spin_lock(&unix_sk(s)->lock)
-#define unix_state_wlock_nested(s) \
+#define unix_state_lock(s)      spin_lock(&unix_sk(s)->lock)
+#define unix_state_unlock(s)    spin_unlock(&unix_sk(s)->lock)
+#define unix_state_lock_nested(s) \
                                 spin_lock_nested(&unix_sk(s)->lock, \
                                 SINGLE_DEPTH_NESTING)
-#define unix_state_wunlock(s)   spin_unlock(&unix_sk(s)->lock)
 
 #ifdef __KERNEL__
 /* The AF_UNIX socket */