mon: return instead of exit(3) via preforker

This lets us run all the locally-scoped dtors so that leak checking will
work.

Signed-off-by: Sage Weil <sage@inktank.com>
(cherry picked from commit 3c5706163b72245768958155d767abf561e6d96d)

2 files changed, 3 insertions, 3 deletions

diff --git a/src/ceph_mon.cc b/src/ceph_mon.cc
index 541c239ef98..36f6c133cf0 100644
--- a/src/ceph_mon.cc
+++ b/src/ceph_mon.cc
@@ -544,6 +544,6 @@ int main(int argc, const char **argv)
     dout(0) << "ceph-mon: gmon.out should be in " << s << dendl;
   }
 
-  prefork.exit(0);
+  return prefork.exit(0);
 }
 
diff --git a/src/common/Preforker.h b/src/common/Preforker.h
index 07f21b45e46..6a8a504f6ee 100644
--- a/src/common/Preforker.h
+++ b/src/common/Preforker.h
@@ -75,12 +75,12 @@ public:
     return r;
   }
 
-  void exit(int r) {
+  int exit(int r) {
     if (forked) {
       // tell parent
       ::write(fd[1], &r, sizeof(r));
     }
-    ::exit(r);
+    return r;
   }
 
   void daemonize() {