x86/vpt: simplify locking argument to write_{,un}lock

Make pt_adjust_vcpu() call write_{,un}lock with less indirection, like
create_periodic_time() already does.

Requested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

diff --git a/xen/arch/x86/hvm/vpt.c b/xen/arch/x86/hvm/vpt.c
index 560fab9cfc607cbb3a75216bf306100db93f987d..4cc0a0848bd7e45eb5db977377084958e36ed9f3 100644 (file)
--- a/xen/arch/x86/hvm/vpt.c
+++ b/xen/arch/x86/hvm/vpt.c
@@ -592,7 +592,7 @@ static void pt_adjust_vcpu(struct periodic_time *pt, struct vcpu *v)
     if ( pt->vcpu == NULL )
         return;
 
-    write_lock(&pt->vcpu->domain->arch.hvm.pl_time->pt_migrate);
+    write_lock(&v->domain->arch.hvm.pl_time->pt_migrate);
 
     if ( pt->vcpu == v )
         goto out;
@@ -613,7 +613,7 @@ static void pt_adjust_vcpu(struct periodic_time *pt, struct vcpu *v)
     pt_vcpu_unlock(v);
 
  out:
-    write_unlock(&pt->vcpu->domain->arch.hvm.pl_time->pt_migrate);
+    write_unlock(&v->domain->arch.hvm.pl_time->pt_migrate);
 }
 
 void pt_adjust_global_vcpu_target(struct vcpu *v)