From owner-freebsd-current Sat Feb 21 23:41:51 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id XAA29001 for freebsd-current-outgoing; Sat, 21 Feb 1998 23:41:51 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from dingo.cdrom.com (dingo.cdrom.com [204.216.28.145]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id XAA28996 for ; Sat, 21 Feb 1998 23:41:50 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost [127.0.0.1]) by dingo.cdrom.com (8.8.8/8.8.5) with ESMTP id XAA06227; Sat, 21 Feb 1998 23:38:58 -0800 (PST) Message-Id: <199802220738.XAA06227@dingo.cdrom.com> X-Mailer: exmh version 2.0zeta 7/24/97 To: Greg Lehey cc: Mike Smith , Julian Elischer , "Matthew N. Dodd" , Chris Csanady , current@FreeBSD.ORG Subject: Re: New SoftUpdates test kit In-reply-to: Your message of "Sun, 22 Feb 1998 17:57:10 +1030." <19980222175710.04357@freebie.lemis.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 21 Feb 1998 23:38:57 -0800 From: Mike Smith Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > Could you chain these headers off the private fields at the end of the > > buf structure, or is the feature set there too small? > > Hmmm. Sometimes it pays to RTFM. No, wait, there is no FM. OK, RTFS > then. 8/ > > (NB. the wfd driver already uses one of these, it not being terribly > > clear to me at the time who they were really for use by.) > > Well, they're used in scsi_ioctl.c and wfd.c, and that's the only > place I've been able to find them. But it's a good idea, and it might > be the way to save the ccd driver if that's what's eating it. The reason I asked is that if you depend on the extra state that you use being preserved despite you passing the bufs out to other drivers, it might pay to impose some sort of policy on which of the fields are available for what usage. Of course, if vinum is at the top of the food chain and only uses the private data internally, then you win. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message