From cc54e51495f99a90df3bb46eacc6f6aead518ca5 Mon Sep 17 00:00:00 2001
From: Pierre Schweitzer <pierre@reactos.org>
Date: Mon, 30 Apr 2018 10:36:19 +0200
Subject: [PATCH] [NTOSKRNL] Unmark dirty first, and then write.

This will avoid trying to flush twice a dirty VACB under
high IOs pressure.

CORE-14584
---
 ntoskrnl/cc/view.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ntoskrnl/cc/view.c b/ntoskrnl/cc/view.c
index e1d064312ff..5bd1f41411a 100644
--- a/ntoskrnl/cc/view.c
+++ b/ntoskrnl/cc/view.c
@@ -168,10 +168,12 @@ CcRosFlushVacb (
 {
     NTSTATUS Status;
 
+    CcRosUnmarkDirtyVacb(Vacb, TRUE);
+
     Status = CcWriteVirtualAddress(Vacb);
-    if (NT_SUCCESS(Status))
+    if (!NT_SUCCESS(Status))
     {
-        CcRosUnmarkDirtyVacb(Vacb, TRUE);
+        CcRosMarkDirtyVacb(Vacb);
     }
 
     return Status;