Signed-off-by: Tomek Grabiec <tgrab...@gmail.com>
---
 arch/x86/insn-selector.brg |   20 ++++++++++++++------
 1 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/arch/x86/insn-selector.brg b/arch/x86/insn-selector.brg
index d6b608a..724abc6 100644
--- a/arch/x86/insn-selector.brg
+++ b/arch/x86/insn-selector.brg
@@ -914,8 +914,9 @@ reg:        EXPR_CLASS_FIELD 1
        struct var_info *out;
        struct insn *mov_insn;
 
-       struct vm_field *vmf; 
+       struct vm_field *vmf;
        struct vm_class *vmc;
+       enum vm_class_state vmc_state;
 
        expr   = to_expr(tree);
 
@@ -925,8 +926,11 @@ reg:       EXPR_CLASS_FIELD 1
        vmf = expr->class_field;
        vmc = vmf->class;
 
-       /* XXX: Lock class */
-       if (vmc->state >= VM_CLASS_INITIALIZING) {
+       vm_monitor_lock(&vmc->monitor);
+       vmc_state = vmc->state;
+       vm_monitor_unlock(&vmc->monitor);
+
+       if (vmc_state >= VM_CLASS_INITIALIZING) {
                /* Class is already initialized; no need for fix-up. We also
                 * don't want the fixup if we're already inside the
                 * initializer. */
@@ -1510,8 +1514,9 @@ stmt:     STMT_STORE(EXPR_CLASS_FIELD, reg)
        struct var_info *src;
        struct insn *mov_insn;
 
-       struct vm_field *vmf; 
+       struct vm_field *vmf;
        struct vm_class *vmc;
+       enum vm_class_state vmc_state;
 
        stmt = to_stmt(tree);
        store_dest = to_expr(stmt->store_dest);
@@ -1522,8 +1527,11 @@ stmt:    STMT_STORE(EXPR_CLASS_FIELD, reg)
        vmf = store_dest->class_field;
        vmc = vmf->class;
 
-       /* XXX: Lock class */
-       if (vmc->state >= VM_CLASS_INITIALIZING) {
+       vm_monitor_lock(&vmc->monitor);
+       vmc_state = vmc->state;
+       vm_monitor_unlock(&vmc->monitor);
+
+       if (vmc_state >= VM_CLASS_INITIALIZING) {
                /* Class is already initialized; no need for fix-up. We also
                 * don't want the fixup if we're already inside the
                 * initializer. */
-- 
1.6.0.6


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