exec: Pass RAMBlock pointer to qemu_ram_free

The only caller now knows exactly which RAMBlock to free, so it's not
necessary to do the lookup.

Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1456813104-25902-6-git-send-email-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 7 insertions, 14 deletions

diff --git a/exec.c b/exec.c
index 6ed4203b97..ad8b826bc1 100644
--- a/exec.c
+++ b/exec.c
@@ -1751,22 +1751,15 @@ static void reclaim_ramblock(RAMBlock *block)
     g_free(block);
 }
 
-void qemu_ram_free(ram_addr_t addr)
+void qemu_ram_free(RAMBlock *block)
 {
-    RAMBlock *block;
-
     qemu_mutex_lock_ramlist();
-    QLIST_FOREACH_RCU(block, &ram_list.blocks, next) {
-        if (addr == block->offset) {
-            QLIST_REMOVE_RCU(block, next);
-            ram_list.mru_block = NULL;
-            /* Write list before version */
-            smp_wmb();
-            ram_list.version++;
-            call_rcu(block, reclaim_ramblock, rcu);
-            break;
-        }
-    }
+    QLIST_REMOVE_RCU(block, next);
+    ram_list.mru_block = NULL;
+    /* Write list before version */
+    smp_wmb();
+    ram_list.version++;
+    call_rcu(block, reclaim_ramblock, rcu);
     qemu_mutex_unlock_ramlist();
 }