Subject: Re: The demise of DEV_BSIZE
To: Ross Harvey <>
From: Bill Studenmund <>
List: tech-kern
Date: 10/07/1999 12:55:54
On Thu, 7 Oct 1999, Ross Harvey wrote:

> OK, then let me ask you: Why would you ever want to go through the
> bio/filesystem layer for this?  Because your performance was too high and
> you wanted an initial handicap due to the copying and the cache thrashing?

It's not just the bio/filesystem code which needs changing. While it's
rare for btodb() & dbtob() to be used outside a filesystem context, these
changes will also teach physio how to deal with non-PO2 drives, which will
be neaded to read the devices raw. :-)

Take care,