Re: Flash Back -- kernel 2.1.111

Andre Hedrick
2002-02-22T19:52:04Z

On Fri, 22 Feb 2002, Alan Cox wrote:

> > Does forcing a command to bypass the contents in the cache meaning
> > anything. This is not a cache sync like SCSI. It is a cache bypass and
> > will violate the journal on the down/commit block.
>
> Thats a really useful option for a whole load of operations. Database folk
> in paticular may well benefit as will O_DIRECT stuff
>

I agree that command mode has a proper use but the goal was to add in
write ordering barrier operations w/ a setfeature to modify the behavior
of the command.

Cheers,

Andre Hedrick
Linux Disk Certification Project Linux ATA Development