diff options
| author | John Heffner <jheffner@psc.edu> | 2007-09-12 10:44:19 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:49:01 -0700 |
| commit | d2e9117c7aa9544d910634e17e3519fd67155229 (patch) | |
| tree | 531507ed5d2031fa80775036fec1b57584a236cb | |
| parent | 02b3d34631831a19ee691516e233756b270eac6d (diff) | |
[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>
| -rw-r--r-- | include/net/sock.h | 7 | ||||
| -rw-r--r-- | net/core/sock.c | 6 |
2 files changed, 6 insertions, 7 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 802c670ba820..5ed9fa42b6e8 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 @@ static inline int sk_stream_wmem_schedule(struct sock *sk, int size) * 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 @@ static inline int sk_stream_wmem_schedule(struct sock *sk, int size) */ #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, \ diff --git a/net/core/sock.c b/net/core/sock.c index 190de61cd648..beb924c248e8 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1585,9 +1585,9 @@ void fastcall lock_sock_nested(struct sock *sk, int subclass) { might_sleep(); spin_lock_bh(&sk->sk_lock.slock); - if (sk->sk_lock.owner) + if (sk->sk_lock.owned) __lock_sock(sk); - sk->sk_lock.owner = (void *)1; + sk->sk_lock.owned = 1; spin_unlock(&sk->sk_lock.slock); /* * The sk_lock has mutex_lock() semantics here: @@ -1608,7 +1608,7 @@ void fastcall release_sock(struct sock *sk) spin_lock_bh(&sk->sk_lock.slock); if (sk->sk_backlog.tail) __release_sock(sk); - sk->sk_lock.owner = NULL; + sk->sk_lock.owned = 0; if (waitqueue_active(&sk->sk_lock.wq)) wake_up(&sk->sk_lock.wq); spin_unlock_bh(&sk->sk_lock.slock); |