cifs: disable sharing session and tcon and add new TCP sharing code

[safe/jmp/linux-2.6] / fs / cifs / cifsglob.h

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 13dc484..313f7bf 100644 (file)
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -123,6 +123,7 @@ struct cifs_cred {
 struct TCP_Server_Info {
        struct list_head tcp_ses_list;
        struct list_head smb_ses_list;
+       int srv_count; /* reference counter */
        /* 15 character server name + 0x20 16th byte indicating type = srv */
        char server_RFC1001_name[SERVER_NAME_LEN_WITH_NULL];
        char unicode_server_Name[SERVER_NAME_LEN_WITH_NULL * 2];
@@ -144,7 +145,6 @@ struct TCP_Server_Info {
        bool svlocal:1;                 /* local server or remote */
        bool noblocksnd;                /* use blocking sendmsg */
        bool noautotune;                /* do not autotune send buf sizes */
-       atomic_t socketUseCount; /* number of open cifs sessions on socket */
        atomic_t inFlight;  /* number of requests on the wire to server */
 #ifdef CONFIG_CIFS_STATS2
        atomic_t inSend; /* requests trying to send */
@@ -591,13 +591,18 @@ require use of the stronger protocol */
 #define GLOBAL_EXTERN extern
 #endif
 
-
-/* the list of TCP_Server_Info structures, ie each of the sockets
+/*
+ * the list of TCP_Server_Info structures, ie each of the sockets
  * connecting our client to a distinct server (ip address), is
- * chained together by global_cifs_sock_list. The list of all our SMB
+ * chained together by cifs_tcp_ses_list. The list of all our SMB
  * sessions (and from that the tree connections) can be found
- * by iterating over global_cifs_sock_list */
-GLOBAL_EXTERN struct list_head global_cifs_sock_list;
+ * by iterating over cifs_tcp_ses_list
+ */
+GLOBAL_EXTERN struct list_head         cifs_tcp_ses_list;
+
+/* protects cifs_tcp_ses_list and srv_count for each tcp session */
+GLOBAL_EXTERN rwlock_t         cifs_tcp_ses_lock;
+
 GLOBAL_EXTERN struct list_head GlobalSMBSessionList; /* BB to be removed by jl*/
 GLOBAL_EXTERN struct list_head GlobalTreeConnectionList; /* BB to be removed */
 GLOBAL_EXTERN rwlock_t GlobalSMBSeslock;  /* protects list inserts on 3 above */