Re: Equivalent of Linux kmap on Mac OS
Re: Equivalent of Linux kmap on Mac OS
- Subject: Re: Equivalent of Linux kmap on Mac OS
- From: Nikita Danilov <email@hidden>
- Date: Wed, 07 Mar 2007 15:52:24 +0800
- Organization: Cluster FS
07/03/2007 04:37 -0800, Terry Lambert:
> On Mar 7, 2007, at 3:45 AM, Anton Altaparmakov wrote:
>
> [ ... ]
>
[...]
> > (int)kerr);
> > err = EIO;
>
> I may be misunderstanding the simplification you performed, and if so,
> forgive me...
>
> You want to call ubc_upl_map() before you do the I/O, or the UPL could
> have been recycled while the system was under extreme pressure, which
By the way, is there any openly available documentation on UPL interface
and XNU VM internals in general?
Nikita.
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