1 files changed, 13 insertions, 6 deletions

diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 2c042f8d70b5..99d2cfbce863 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -55,7 +55,12 @@ static void nfs_callback_svc(struct svc_rqst *rqstp)
 
         complete(&nfs_callback_info.started);
 
-        while (nfs_callback_info.users != 0 || !signalled()) {
+        for(;;) {
+                if (signalled()) {
+                        if (nfs_callback_info.users == 0)
+                                break;
+                        flush_signals(current);
+                }
                 /*
                  * Listen for a request on the socket
                  */
@@ -135,11 +140,13 @@ int nfs_callback_down(void)
 
         lock_kernel();
         down(&nfs_callback_sema);
-        if (--nfs_callback_info.users || nfs_callback_info.pid == 0)
-                goto out;
-        kill_proc(nfs_callback_info.pid, SIGKILL, 1);
-        wait_for_completion(&nfs_callback_info.stopped);
-out:
+        nfs_callback_info.users--;
+        do {
+                if (nfs_callback_info.users != 0 || nfs_callback_info.pid == 0)
+                        break;
+                if (kill_proc(nfs_callback_info.pid, SIGKILL, 1) < 0)
+                        break;
+        } while (wait_for_completion_timeout(&nfs_callback_info.stopped, 5*HZ) == 0);
         up(&nfs_callback_sema);
         unlock_kernel();
         return ret;