[Qemu-devel] [PATCH] memory: reduce heap Rss size around 3M

[Yang Zhong <yang.zhong@intel.com>]

Since cpu-memory and memory have same address space,one malloced
memory is enough. This patch will skip memory malloc for memory
address space,which will reduce around 3M physical memory in heap.

Signed-off-by: Yang Zhong <yang.zhong@intel.com>
---
 memory.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/memory.c b/memory.c
index 284894b..799ca4c 100644
--- a/memory.c
+++ b/memory.c
@@ -2422,8 +2422,10 @@ AddressSpace *address_space_init_shareable(MemoryRegion *root, const char *name)
     AddressSpace *as;
 
     QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
-        if (root == as->root && as->malloced) {
-            as->ref_count++;
+        if (root == as->root) {
+            if (as->malloced) {
+                as->ref_count++;
+            }
             return as;
         }
     }
-- 
1.9.1