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On Dec 16, 2003, at 9:36 PM, Thor Lancelot Simon wrote:

> I must not understand what you're saying.  You say "synchronous read
> requests can happen on the delayed-writed page and we have no way to
> look up the corresponding buf from a page".  That suggests to me that
> the read will return the wrong data; am I incorrect?  If not, what is
> the problem, exactly, if synchronous read requests happen on pages
> that have delayed writes in the I/O queues?

I'm not sure what all the hubub is all about ... don't all file data 
requests go through UBC in any case?

         -- Jason R. Thorpe <thorpej@wasabisystems.com>


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