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

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This commit is contained in:
Pierre Schweitzer 2018-10-23 21:48:01 +02:00
parent 0e41230dac
commit f3b9beeb39
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1 changed files with 8 additions and 1 deletions
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9
ntoskrnl/cc/pin.c
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@ -267,6 +267,7 @@ CcpPinData(
BOOLEAN Result; BOOLEAN Result;
PROS_VACB Vacb; PROS_VACB Vacb;
KIRQL OldIrql; KIRQL OldIrql;
ULONG MapFlags;
KeAcquireSpinLock(&SharedCacheMap->BcbSpinLock, &OldIrql); KeAcquireSpinLock(&SharedCacheMap->BcbSpinLock, &OldIrql);
NewBcb = CcpFindBcb(SharedCacheMap, FileOffset, Length, TRUE); NewBcb = CcpFindBcb(SharedCacheMap, FileOffset, Length, TRUE);
@ -305,7 +306,13 @@ CcpPinData(
return FALSE; 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) if (Result)
{ {
NewBcb = CcpGetAppropriateBcb(SharedCacheMap, Vacb, FileOffset, Length, Flags, TRUE); NewBcb = CcpGetAppropriateBcb(SharedCacheMap, Vacb, FileOffset, Length, Flags, TRUE);