On Mar 7,  7:02am, thorpej@shagadelic.org (Jason Thorpe) wrote:
-- Subject: Re: pkg/31944

| 
| On Mar 7, 2006, at 6:38 AM, Christos Zoulas wrote:
| 
| > just keep a global generation number counter and use it to allocate  
| > generation
| > numbers.
| 
| Except you would have to increment it each time an inode is  
| allocated, because you don't know what the inode's last generation  
| was.  That will run out pretty quickly, because it's a 32-bit counter.
| 
| The map sounds like a good enough idea for now.
| 
| OTOH, if the metadata were pageable.... :-)
| 
| -- thorpej

Right, but it does not matter. The probability that the same generation
number gets allocated to the same inode is miniscule.

christos