[PATCH v3 2/2] x86/vpt: Simplify locking argument to write_{un}lock

[Boris Ostrovsky]

Make both create_periodic_time() and pt_adjust_vcpu() call
write_{un}lock with similar arguments.

Requested-by: Jan Beulich <jbeul...@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrov...@oracle.com>
---
New patch.

I ended up doing what Jan asked --- create_periodic_time() is also using 
different
start pointers in lock() and unlock().


 xen/arch/x86/hvm/vpt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/hvm/vpt.c b/xen/arch/x86/hvm/vpt.c
index 560fab9cfc60..4cc0a0848bd7 100644
--- 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)
-- 
1.8.3.1