Re: In what cases parameters to IRP_MJ_xxx/Fast I/O handlers are in paged pool?

NTFSD
1

What parameters? Parameters are always on the stack. If you mean
actual data pointed by them, only the Irp->UserBuffer or actual buffers
provided can be paged. Other data will not be.

–
Kind regards, Dejan M. MVP for DDK
http://www.alfasp.com E-mail: xxxxx@alfasp.com
Alfa Transparent File Encryptor - Transparent file encryption services.
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2

Sorry, I’ve expressed my thought incorrectly.
Sure I’ve meant structures and data buffers pointed by the parameters.

What parameters? Parameters are always on the stack. If you mean
actual data pointed by them, only the Irp->UserBuffer or actual buffers
provided can be paged. Other data will not be.
In other words, you mean data buffer can be paged and kernel structures
like DEVICE_OBJECT and FILE_OBJECT cannot?

–
Kind regards, Dejan M. MVP for DDK
http://www.alfasp.com E-mail: xxxxx@alfasp.com
Alfa Transparent File Encryptor - Transparent file encryption services.
Alfa File Protector - File protection and hiding library for Win32
developers.
Alfa File Monitor - File monitoring library for Win32 developers.