BOOLEAN NTAPI CcpUnpinData	(	IN PNOCC_BCB	RealBcb,
		BOOLEAN	ReleaseBit
	)

Definition at line 920 of file pinsup.c.

{
    if (RealBcb->RefCount <= 2)
    {
        RealBcb->Exclusive = FALSE;
        if (RealBcb->ExclusiveWaiter)
        {
            DPRINT("Triggering exclusive waiter\n");
            KeSetEvent(&RealBcb->ExclusiveWait, IO_NO_INCREMENT, FALSE);
            return TRUE;
        }
    }
    if (RealBcb->RefCount == 2 && !ReleaseBit)
        return FALSE;
    if (RealBcb->RefCount > 1)
    {
        DPRINT("Removing one reference #%x\n", RealBcb - CcCacheSections);
        RealBcb->RefCount--;
        KeSetEvent(&CcDeleteEvent, IO_DISK_INCREMENT, FALSE);
    }
    if (RealBcb->RefCount == 1)
    {
        DPRINT("Clearing allocation bit #%x\n", RealBcb - CcCacheSections);

        RtlClearBit(CcCacheBitmap, RealBcb - CcCacheSections);

#ifdef PIN_WRITE_ONLY
        PVOID BaseAddress = RealBcb->BaseAddress;
        SIZE_T NumberOfBytes = RealBcb->Length;
        ULONG OldProtect;

        MiProtectVirtualMemory(NULL,
                               &BaseAddress,
                               &NumberOfBytes,
                               PAGE_READONLY,
                               &OldProtect);
#endif
    }

    return TRUE;
}

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