Subject: Re: pkg/31944
To: None <kern-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: Christos Zoulas <christos@zoulas.com>
List: netbsd-bugs
Date: 03/07/2006 15:40:02
The following reply was made to PR kern/31944; it has been noted by GNATS.
From: christos@zoulas.com (Christos Zoulas)
To: Jason Thorpe <thorpej@shagadelic.org>
Cc: gnats-bugs@netbsd.org, kern-bug-people@netbsd.org,
gnats-admin@netbsd.org, netbsd-bugs@netbsd.org,
yamt@mwd.biglobe.ne.jp
Subject: Re: pkg/31944
Date: Tue, 7 Mar 2006 10:36:38 -0500
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