Common/MemArena: Set MAP_NORESERVE in LazyMemoryRegion on Linux.

dolphin-emu · Sep 10, 2023 · 606aa59 · 606aa59
1 parent 1a0f0e7
commit 606aa59
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/Source/Core/Common/MemArenaUnix.cpp b/Source/Core/Common/MemArenaUnix.cpp
@@ -124,7 +124,8 @@ void* LazyMemoryRegion::Create(size_t size)
   if (size == 0)
     return nullptr;
 
-  void* memory = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+  void* memory =
+      mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1, 0);
   if (memory == MAP_FAILED)
   {
     NOTICE_LOG_FMT(MEMMAP, "Memory allocation of {} bytes failed.", size);
@@ -142,7 +143,7 @@ void LazyMemoryRegion::Clear()
   ASSERT(m_memory);
 
   void* new_memory = mmap(m_memory, m_size, PROT_READ | PROT_WRITE,
-                          MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
+                          MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE | MAP_FIXED, -1, 0);
   ASSERT(new_memory == m_memory);
 }