Cleanups

src/platform.c

@@ -13,7 +13,6 @@ U32 platform_page_size(void)
     return getpagesize();
 }
 
-
 void *platform_malloc(size_t size)
 {
     return malloc(size);
@@ -24,16 +23,22 @@ void platform_free(void *mem)
     free(mem);
 }
 
-
-void *memory_allocate(size_t size)
+void *memory_allocate_and_commit(size_t size)
 {
-    Assert(IsPow2(size));
+    Assert(IsPageAligned(size));
 
     void *mem = mmap(0, size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS  | MAP_PRIVATE, -1, 0);
     TRACEF("memory_allocate size=%7zu mem=%p\n", size, mem);
     if (mem == MAP_FAILED) {
         mem = NULL;
+    } else {
+        int rc = madvise(mem, size, MADV_POPULATE_WRITE);
+        if (rc != 0) {
+            munmap(mem, size);
+            mem = NULL;
+        }
     }
+
     return mem;
 }