Article 13728 of comp.os.ms-windows.programmer.nt.kernel-mode:
In fact, yes it is the case that an FSD can be called at DISPATCH_LEVEL from
a DPC routine.

All the FSDs handle this the same - they strip the IRP_MN_DPC bit from the
MinorFunction value, queue the request, and return STATUS_PENDING.

A file system or file system filter driver must be written to handle this
case.

Regards,

Tony

Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
mason@osr.com
http://www.osr.com


Iliia wrote in message <670lvf$ahu$1@tom.pppl.gov>...
>Somebody could please explain to my what kind of IRPs and when have this
>flag. Does it mean that FS filter driver or any other kind of driver could
>be called on DPC level from let's say some network redirector. If so, what
>about all these events, mutexes and so on that couldn't be used on DPC?
>
>--
>Iliia Dubrovsky.
>ILIIA_DUBROVSKY@MAIL.STIL.SCITEX.COM
>
>
>