From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 3 Jan 2006 08:55:19 +0000 (+0100)
Subject: SUNRPC: Ensure that SIGKILL will always terminate a synchronous RPC call.
X-Git-Tag: firefly_0821_release~39671^2~4^2~40
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2bd615797ef32ec06ef0ee44198a7aecc21ffd8c;p=firefly-linux-kernel-4.4.55.git

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>
---

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 */