Redirs, mmap and oplocks

NTFSD
1

What is the behavior if you mmap the file from RDR, and then the oplock to this file is revoked?

Is the behavior undefined? or is there any attempts to maintain distributed coherency in this case?

–
Maxim S. Shatskih
Microsoft MVP on File System And Storage
xxxxx@storagecraft.com
http://www.storagecraft.com

2

Which version of RDR?

Tony
OSR

3

Max,

In my experience there are no guarantees in this case. In general, the
redirector can pend the break request, indicating the break is in
progress. But depending on the source of the break request, from another
Windows server, Linux, etc. then the break request may be mandated and
not recognized as a being pended.

Pete

–
Kernel Drivers
Windows File System and Device Driver Consulting
www.KernelDrivers.com http:</http:>
866.263.9295

------ Original Message ------
From: “Maxim S. Shatskih”
To: “Windows File Systems Devs Interest List”
Sent: 2/11/2016 5:08:19 AM
Subject: [ntfsd] Redirs, mmap and oplocks

> What is the behavior if you mmap the file from RDR, and then the
>oplock to this file is revoked?
>
> Is the behavior undefined? or is there any attempts to maintain
>distributed coherency in this case?
>
>–
>Maxim S. Shatskih
>Microsoft MVP on File System And Storage
>xxxxx@storagecraft.com
>http://www.storagecraft.com
>
>
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