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On Wed, Jan 04, 2006 at 02:16:19PM -0800, Jason Thorpe wrote:
> On Jan 4, 2006, at 2:05 PM, Reinoud Zandijk wrote:
> >one of the goals was rather to un-muddy the buffer stuff i.e.  
> >cleaning up
> >by trying to orthogonise buffer flags and actions.
> 
> Except that getbuf() / brelse() imply the use of the caching  
> mechanism.  You then set a flag that says "oh, I'm just using this as  
> an I/O descriptor", which basically makes brelse() mean nothing other  
> than "pool_put()".
> 
> So, why not just remain consistent with the other parts of the kernel  
> that already use a buf as an I/O descriptor rather than adding  
> something that isn't actually needed just so it can be ripped out  
> later anyway?

maybe i'm too focused on performace or rather see stuff changed the sooner 
the better.

What do you think about the B_NESTED? This would eventually go into the 
iobuf part and is significant addition in functionality at practically no 
cost.

With regards,
Reinoud

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