[PATCH] knfsd: add a callback for when last rpc thread finishes

nfsd has some cleanup that it wants to do when the last thread exits, and
there will shortly be some more.  So collect this all into one place and
define a callback for an rpc service to call when the service is about to be
destroyed.

[akpm@osdl.org: cleanups, build fix]
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 73140ee5c638..bff5e9b486c2 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -42,6 +42,11 @@ struct svc_serv {
         int                     sv_tmpcnt;      /* count of temporary sockets */
 
         char *                  sv_name;        /* service name */
+
+        void                    (*sv_shutdown)(struct svc_serv *serv);
+                                                /* Callback to use when last thread
+                                                 * exits.
+                                                 */
 };
 
 /*
@@ -328,7 +333,8 @@ typedef void		(*svc_thread_fn)(struct svc_rqst *);
 /*
  * Function prototypes.
  */
-struct svc_serv *  svc_create(struct svc_program *, unsigned int);
+struct svc_serv *  svc_create(struct svc_program *, unsigned int,
+                              void (*shutdown)(struct svc_serv*));
 int                svc_create_thread(svc_thread_fn, struct svc_serv *);
 void               svc_exit_thread(struct svc_rqst *);
 void               svc_destroy(struct svc_serv *);