Add MAP_POPULATE for Lin mmap

vurusovs · Apr 16, 2024 · 999d6d3 · 999d6d3
1 parent 58e1c38
commit 999d6d3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/common/util/src/os/lin/lin_mmap_object.cpp b/src/common/util/src/os/lin/lin_mmap_object.cpp
@@ -77,7 +77,7 @@ class MapHolder : public MappedMemory {
         }
         m_size = sb.st_size;
         if (m_size > 0) {
-            m_data = mmap(nullptr, m_size, prot, MAP_PRIVATE, m_handle.get(), 0);
+            m_data = mmap(nullptr, m_size, prot, MAP_PRIVATE | MAP_POPULATE, m_handle.get(), 0);
             if (m_data == MAP_FAILED) {
                 throw std::runtime_error("Can not create file mapping for " + path + ", err=" + std::strerror(errno));
             }