BIO_FLUSH on twe driver. Why is it not there?

[Pawel Jakub Dawidek]

On Thu, Nov 01, 2007 at 10:41:00PM +0100, Dag-Erling Sm??rgrav wrote:
> "Artem Kuchin" <matrix at itlegion.ru> writes:
> > However, twe is working via scsi subsystem and the authour of gjournal
> > said somewhere that he has had implemeneted BIO_FLISH for scsi and he
> > specifically mentioned that he has tested twe and twa and they both
> > support BIO_FLUSH.
> 
> twa(4) uses CAM, but twe(4) doesn't (and never has).

That was my mistake. Someone told me (I think it was jhb@), that twe(4)
turns off write cache automatically when there is no battery, so
BIO_FLUSH isn't really needed and if there is a battery, it also isn't
really needed. It would be nice to hide the warning in this case
somehow, but for now you should be safe by simply ignoring the warning.

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-current/attachments/20071102/e770a62e/attachment.pgp