SUNRPC: Ensure that SIGKILL will always terminate a synchronous RPC call.

 ...and make sure that the "intr" flag also enables SIGHUP and SIGTERM to
 interrupt RPC calls too (as per the Solaris implementation).

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 4 insertions, 4 deletions

diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 12a857c29e25..71a30b416d1a 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -178,6 +178,8 @@ lockd(struct svc_rqst *rqstp)
 
         }
 
+        flush_signals(current);
+
         /*
          * Check whether there's a new lockd process before
          * shutting down the hosts and clearing the slot.
@@ -192,8 +194,6 @@ lockd(struct svc_rqst *rqstp)
                         "lockd: new process, skipping host shutdown\n");
         wake_up(&lockd_exit);
 
-        flush_signals(current);
-
         /* Exit the RPC thread */
         svc_exit_thread(rqstp);
 
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index f025b7e72353..b23c0d328c9c 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -386,11 +386,11 @@ static const struct rpc_call_ops rpc_default_ops = {
  *      Export the signal mask handling for synchronous code that
  *      sleeps on RPC calls
  */
-#define RPC_INTR_SIGNALS (sigmask(SIGINT) | sigmask(SIGQUIT) | sigmask(SIGKILL))
+#define RPC_INTR_SIGNALS (sigmask(SIGHUP) | sigmask(SIGINT) | sigmask(SIGQUIT) | sigmask(SIGTERM))
  
 static void rpc_save_sigmask(sigset_t *oldset, int intr)
 {
-        unsigned long   sigallow = 0;
+        unsigned long   sigallow = sigmask(SIGKILL);
         sigset_t sigmask;
 
         /* Block all signals except those listed in sigallow */