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Re: Read/Write call interaction w/ UBC

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Re: Read/Write call interaction w/ UBC

Subject: Re: Read/Write call interaction w/ UBC
From: Terry Lambert <email@hidden>
Date: Tue, 08 Jul 2008 02:25:14 -0700

On Jul 7, 2008, at 7:21 PM, shailesh jain <email@hidden> wrote:

I am writing a file system that does not support caching. I wanted to know, If by just passing NO_CACHE and CANT_CACHE option, I can disable entire caching ?

As of my understanding, the options are just to disable name lookup etc caching and it cannot disable file content caching i.e where UBC comes into play. Can I disable file content caching i.e UBC ? (set it to UBC_INFO_NULL ?).

Also, apple docs says that UBC for apple is different from FreeBSD. I wanted to know in what respect ?

Read the sources. I put massive block comments in the UBC code for just such an emergency. 8-).

-- Terry


/Shail

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Re: Read/Write call interaction w/ UBC
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