ceph-fuse: ceph-fuse process is terminated by the logratote task and …

…what is more serious is that one Uninterruptible Sleep process will be produced

Fixes: http://tracker.ceph.com/issues/46269
Signed-off-by: hzwuhongsong <hzwuhongsong@corp.netease.com>

src/ceph_fuse.cc

@@ -161,6 +161,7 @@ int main(int argc, const char **argv, const char *envp[]) {
       return r;
     }
     if (forker.is_parent()) {
+      signal(SIGHUP, SIG_IGN);
       r = forker.parent_wait(err);
       if (r < 0) {
 	cerr << "ceph-fuse " << err << std::endl;