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On Thu, Dec 16, 2004 at 01:35:43PM -0500, Steven M. Bellovin wrote:
> In message <20041216182737.GA8856@netbsd.org>, Bill Studenmund writes:
> >
>=20
> >
> >I think it'd be better to add a "Force Unit Access" attribute to writes,
> >and have them set when we need the write to bypass the cache. Among other
> >things, this action will directly map to SCSI command semantics (i.e. you
> >fix the problem for both SCSI and IDE drives).
>=20
> But under what conditions should higher layers set this flag?

Metadata updates.

If the upper level really cares about ordering, it should set this flag.

Take care,

Bill

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