import 15.2.0 Octopus source

[ceph.git] / ceph / src / common / ceph_time.h

diff --git a/ceph/src/common/ceph_time.h b/ceph/src/common/ceph_time.h
index 74236bfd4ef288f64b4bf0263f0a27edeed9b862..f6185c882006312228c3a78ce8837fe0db758b62 100644 (file)
--- a/ceph/src/common/ceph_time.h
+++ b/ceph/src/common/ceph_time.h
@@ -482,7 +482,19 @@ inline timespan abs(signedspan z) {
     timespan(-z.count());
 }
 inline timespan to_timespan(signedspan z) {
-  ceph_assert(z >= signedspan::zero());
+  if (z < signedspan::zero()) {
+    //ceph_assert(z >= signedspan::zero());
+    // There is a kernel bug that seems to be triggering this assert.  We've
+    // seen it in:
+    //   centos 8.1: 4.18.0-147.el8.x86_64
+    //   debian 10.3: 4.19.0-8-amd64
+    //   debian 10.1: 4.19.67-2+deb10u1
+    //   ubuntu 18.04
+    // see bugs:
+    //   https://tracker.ceph.com/issues/43365
+    //   https://tracker.ceph.com/issues/44078
+    z = signedspan::zero();
+  }
   return std::chrono::duration_cast<timespan>(z);
 }
 
@@ -503,6 +515,20 @@ struct converts_to_timespec<Clock, std::void_t<decltype(
 template <typename Clock>
 constexpr bool converts_to_timespec_v = converts_to_timespec<Clock>::value;
 
+template<typename Rep, typename T>
+static Rep to_seconds(T t) {
+  return std::chrono::duration_cast<
+    std::chrono::duration<Rep>>(t).count();
+}
+
+template<typename Rep, typename T>
+static Rep to_microseconds(T t) {
+  return std::chrono::duration_cast<
+    std::chrono::duration<
+      Rep,
+      std::micro>>(t).count();
+}
+
 } // namespace ceph
 
 #endif // COMMON_CEPH_TIME_H