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Are FastIo compression routines still unused?
Hey,
According to this comment by Neal (from 2003) the fast IO compressed routines (FastIoReadCompressed, FastIoWriteCompressed, MdlReadCompleteCompressed, MdlWriteCompleteCompressed) were not used and file system filters should have provided pass-through logic in case they'll be used in the future. I'm wondering - Is there any file system driver that uses these routines now? Or they were never really used since then? I know that if you write a file system driver you don't need to support these routines (like ntfs, fastfat etc) and modern filters are developed using the filter manager so you don't really have to worried about this "pass-through" logic, But I'm still curious about these routines.
Thanks for your answer:)
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Comments
Sorry, I posted this question in NTDEV and I meant to post it in NTFSD. Can an administrator move it?
Your wish, granted.
Peter
Peter Viscarola
OSR
@OSRDrivers
AFAIK these have never been used. FltMgr still doesn't even provide a way to get these in your minifilter.
-scott
OSR