From: Pierre Schweitzer <pierre@reactos.org>
Date: Fri, 5 Oct 2018 19:17:38 +0000 (+0200)
Subject: [NTOSKRNL] Implement support for PIN_IF_BCB flag
X-Git-Tag: 0.4.12-dev~602
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=bd39459f89da7e5031b2b30266521df362759e52

[NTOSKRNL] Implement support for PIN_IF_BCB flag
---

diff --git a/ntoskrnl/cc/pin.c b/ntoskrnl/cc/pin.c
index f40405e6c52..3e89cacddfa 100644
--- a/ntoskrnl/cc/pin.c
+++ b/ntoskrnl/cc/pin.c
@@ -329,6 +329,12 @@ CcPinRead (
 
     if (iBcb == NULL)
     {
+        /* We failed to find an already existing BCB */
+        if (BooleanFlagOn(Flags, PIN_IF_BCB))
+        {
+            return FALSE;
+        }
+
         /* Map first */
         if (!CcpMapData(SharedCacheMap, FileOffset, Length, Flags, Bcb, Buffer))
         {