Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / include / net / af_unix.h

diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index b8e325d..8a10ee6 100644 (file)
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -1,5 +1,12 @@
 #ifndef __LINUX_NET_AFUNIX_H
 #define __LINUX_NET_AFUNIX_H
+
+#include <linux/config.h>
+#include <linux/socket.h>
+#include <linux/un.h>
+#include <linux/mutex.h>
+#include <net/sock.h>
+
 extern void unix_inflight(struct file *fp);
 extern void unix_notinflight(struct file *fp);
 extern void unix_gc(void);
@@ -7,7 +14,7 @@ extern void unix_gc(void);
 #define UNIX_HASH_SIZE 256
 
 extern struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1];
-extern rwlock_t unix_table_lock;
+extern spinlock_t unix_table_lock;
 
 extern atomic_t unix_tot_inflight;
 
@@ -55,10 +62,10 @@ struct unix_skb_parms {
 #define UNIXCB(skb)    (*(struct unix_skb_parms*)&((skb)->cb))
 #define UNIXCREDS(skb) (&UNIXCB((skb)).creds)
 
-#define unix_state_rlock(s)    read_lock(&unix_sk(s)->lock)
-#define unix_state_runlock(s)  read_unlock(&unix_sk(s)->lock)
-#define unix_state_wlock(s)    write_lock(&unix_sk(s)->lock)
-#define unix_state_wunlock(s)  write_unlock(&unix_sk(s)->lock)
+#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_wunlock(s)  spin_unlock(&unix_sk(s)->lock)
 
 #ifdef __KERNEL__
 /* The AF_UNIX socket */
@@ -68,14 +75,23 @@ struct unix_sock {
         struct unix_address     *addr;
         struct dentry          *dentry;
         struct vfsmount                *mnt;
-        struct semaphore        readsem;
+       struct mutex            readlock;
         struct sock            *peer;
         struct sock            *other;
         struct sock            *gc_tree;
         atomic_t                inflight;
-        rwlock_t                lock;
+        spinlock_t             lock;
         wait_queue_head_t       peer_wait;
 };
 #define unix_sk(__sk) ((struct unix_sock *)__sk)
+
+#ifdef CONFIG_SYSCTL
+extern int sysctl_unix_max_dgram_qlen;
+extern void unix_sysctl_register(void);
+extern void unix_sysctl_unregister(void);
+#else
+static inline void unix_sysctl_register(void) {}
+static inline void unix_sysctl_unregister(void) {}
+#endif
 #endif
 #endif