Re: Proposal: B_ARRIER (addresses wapbl performance?)

[Jason Thorpe <thorpej%shagadelic.org@localhost>]

On Dec 9, 2008, at 1:41 PM, Manuel Bouyer wrote:

> OK, so you use software barrier, not the ones provided by disks
> (this is what was not clear).


Yes, because it prevents you from stalling writes behind other  
orthogonal commands.

-- thorpej