[Qemu-devel] [PATCH 28/39] memory: cpu_physical_memory_clear_dirty_range() now uses bitmap operations

[Juan Quintela]

We were clearing a range of bits, so use bitmap_clear().

Signed-off-by: Juan Quintela <address@hidden>
---
 include/exec/memory-internal.h | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/include/exec/memory-internal.h b/include/exec/memory-internal.h
index 2f704e8..d46570e 100644
--- a/include/exec/memory-internal.h
+++ b/include/exec/memory-internal.h
@@ -95,13 +95,11 @@ static inline void 
cpu_physical_memory_clear_dirty_range(ram_addr_t start,
                                                          ram_addr_t length,
                                                          unsigned client)
 {
-    ram_addr_t addr, end;
+    unsigned long end, page;

-    end = TARGET_PAGE_ALIGN(start + length);
-    start &= TARGET_PAGE_MASK;
-    for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
-        clear_bit(addr >> TARGET_PAGE_BITS, ram_list.dirty_memory[client]);
-    }
+    end = TARGET_PAGE_ALIGN(start + length) >> TARGET_PAGE_BITS;
+    page = start >> TARGET_PAGE_BITS;
+    bitmap_clear(ram_list.dirty_memory[client], page, end - page);
 }

 void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
-- 
1.8.3.1