block: Convert bdrv_aio_discard() to byte-based

[mirror_qemu.git] / exec.c

diff --git a/exec.c b/exec.c
index a9d465b289de7cae7128125cc67b2ef43aca715e..60cf46a5b51cf9b8127d0b1747349be52eddde7d 100644 (file)
--- a/exec.c
+++ b/exec.c
@@ -19,7 +19,6 @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #ifndef _WIN32
-#include <sys/mman.h>
 #endif
 
 #include "qemu/cutils.h"
@@ -37,7 +36,7 @@
 #include "qemu/config-file.h"
 #include "qemu/error-report.h"
 #if defined(CONFIG_USER_ONLY)
-#include <qemu.h>
+#include "qemu.h"
 #else /* !CONFIG_USER_ONLY */
 #include "hw/hw.h"
 #include "exec/memory.h"
@@ -188,10 +187,12 @@ struct CPUAddressSpace {
 
 static void phys_map_node_reserve(PhysPageMap *map, unsigned nodes)
 {
+    static unsigned alloc_hint = 16;
     if (map->nodes_nb + nodes > map->nodes_nb_alloc) {
-        map->nodes_nb_alloc = MAX(map->nodes_nb_alloc * 2, 16);
+        map->nodes_nb_alloc = MAX(map->nodes_nb_alloc, alloc_hint);
         map->nodes_nb_alloc = MAX(map->nodes_nb_alloc, map->nodes_nb + nodes);
         map->nodes = g_renew(Node, map->nodes, map->nodes_nb_alloc);
+        alloc_hint = map->nodes_nb_alloc;
     }
 }
 
@@ -1935,7 +1936,7 @@ RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset,
         ram_addr = xen_ram_addr_from_mapcache(ptr);
         block = qemu_get_ram_block(ram_addr);
         if (block) {
-            *offset = (host - block->host);
+            *offset = ram_addr - block->offset;
         }
         rcu_read_unlock();
         return block;