Subject: Re: wd, disk write cache, sync cache, and softdep.
To: Bill Studenmund <wrstuden@NetBSD.org>
From: Steven M. Bellovin <email@example.com>
Date: 12/16/2004 13:35:43
In message <20041216182737.GA8856@netbsd.org>, Bill Studenmund writes:
>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).
But under what conditions should higher layers set this flag?
--Steve Bellovin, http://www.research.att.com/~smb