01/01: [NTOSKRNL] Translate pinning flags to mapping flags when first mapping a file

[Pierre Schweitzer]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=f3b9beeb391858c79b1fc…
commit f3b9beeb391858c79b1fc474e566690cf2e765bc
Author:     Pierre Schweitzer <pierre(a)reactos.org>
AuthorDate: Tue Oct 23 21:48:01 2018 +0200
Commit:     Pierre Schweitzer <pierre(a)reactos.org>
CommitDate: Tue Oct 23 22:07:53 2018 +0200
    [NTOSKRNL] Translate pinning flags to mapping flags when first mapping a file
---
 ntoskrnl/cc/pin.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/ntoskrnl/cc/pin.c b/ntoskrnl/cc/pin.c
index 4f0e4f5a82..d972f8a75d 100644
--- a/ntoskrnl/cc/pin.c
+++ b/ntoskrnl/cc/pin.c
@@ -267,6 +267,7 @@ CcpPinData(
     BOOLEAN Result;
     PROS_VACB Vacb;
     KIRQL OldIrql;
+    ULONG MapFlags;
     KeAcquireSpinLock(&SharedCacheMap->BcbSpinLock, &OldIrql);
     NewBcb = CcpFindBcb(SharedCacheMap, FileOffset, Length, TRUE);
@@ -305,7 +306,13 @@ CcpPinData(
             return FALSE;
         }
-        Result = CcpMapData(SharedCacheMap, FileOffset, Length, Flags, &Vacb,
Buffer);
+        MapFlags = Flags & PIN_WAIT;
+        if (BooleanFlagOn(Flags, PIN_NO_READ))
+        {
+            SetFlag(MapFlags, MAP_NO_READ);
+        }
+
+        Result = CcpMapData(SharedCacheMap, FileOffset, Length, MapFlags, &Vacb,
Buffer);
         if (Result)
         {
             NewBcb = CcpGetAppropriateBcb(SharedCacheMap, Vacb, FileOffset, Length,
Flags, TRUE);