FastIoWrite and FO_FILE_MODIFIED

NTFSD
1

Hi experts,
I have another newbee question.

Is it safe to assume that if a FastIoWrite is observed on a FileObject,
System will set the FO_FILE_MODIFIED flag in the FileObject->Flags?

In other words, whenever we see FastIoWrite Called on the FO it is surely
modified?

Please help.

Thanks in advance.

Alex

2

There is no guarantee that the FSD will set this bit in its fast I/O handler. The default (FsRtl) version does, but other file systems might not.

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

3

Thanks Tony.

wrote in message news:xxxxx@ntfsd…
> There is no guarantee that the FSD will set this bit in its fast I/O
> handler. The default (FsRtl) version does, but other file systems might
> not.
>
> Tony Mason
> Consulting Partner
> OSR Open Systems Resources, Inc.
> http://www.osr.com
>
>