[NET]: Change type of owner in sock_lock_t to int, rename
The type of owner in sock_lock_t is currently (struct sock_iocb *),
presumably for historical reasons. It is never used as this type, only
tested as NULL or set to (void *)1. For clarity, this changes it to type
int, and renames to owned, to avoid any possible type casting errors.
Signed-off-by: John Heffner <jheffner@psc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sock.h b/include/net/sock.h
index 802c670..5ed9fa4 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -76,10 +76,9 @@
* between user contexts and software interrupt processing, whereas the
* mini-semaphore synchronizes multiple users amongst themselves.
*/
-struct sock_iocb;
typedef struct {
spinlock_t slock;
- struct sock_iocb *owner;
+ int owned;
wait_queue_head_t wq;
/*
* We express the mutex-alike socket_lock semantics
@@ -737,7 +736,7 @@
* Since ~2.3.5 it is also exclusive sleep lock serializing
* accesses from user process context.
*/
-#define sock_owned_by_user(sk) ((sk)->sk_lock.owner)
+#define sock_owned_by_user(sk) ((sk)->sk_lock.owned)
/*
* Macro so as to not evaluate some arguments when
@@ -748,7 +747,7 @@
*/
#define sock_lock_init_class_and_name(sk, sname, skey, name, key) \
do { \
- sk->sk_lock.owner = NULL; \
+ sk->sk_lock.owned = 0; \
init_waitqueue_head(&sk->sk_lock.wq); \
spin_lock_init(&(sk)->sk_lock.slock); \
debug_check_no_locks_freed((void *)&(sk)->sk_lock, \