minifilter question

NTFSD
1

Gentlefolk

In some minifilter the processing I need to perform from the callback
routines for IRP_MJ_SET_INFORMATION and some other operations is dependent
on whether the operation is or is not paging i/o. So the question is, which
I havent found the answer for so far, how do I determine whether or not the
operation is paging i/o from the minifilter callback routines? It is such an
obvious thing I am sure there must be some simple macro or function call …
I just havent been able to find that call :frowning:

In a traditional filter I have just looked at Irp->Flags where relevant in
the dispatch path.

Thanks
Lyndon

2

D’oh sorry folk … I just found Cbd->Iopb->IrpFlags :slight_smile:

Thanks
Lyndon

“Lyndon J Clarke” wrote in message
news:xxxxx@ntfsd…
> Gentlefolk
>
> In some minifilter the processing I need to perform from the callback
> routines for IRP_MJ_SET_INFORMATION and some other operations is dependent
> on whether the operation is or is not paging i/o. So the question is,
> which I havent found the answer for so far, how do I determine whether or
> not the operation is paging i/o from the minifilter callback routines? It
> is such an obvious thing I am sure there must be some simple macro or
> function call … I just havent been able to find that call :frowning:
>
> In a traditional filter I have just looked at Irp->Flags where relevant in
> the dispatch path.
>
> Thanks
> Lyndon
>
>
>