Date: Tue, 24 Feb 1998 11:13:23 +0800 From: Julian Elischer <julian@whistle.com> To: Terry Lambert <tlambert@primenet.com> Cc: Mike Smith <mike@smith.net.au>, hasty@rah.star-gate.com, scrappy@hub.org, freebsd-current@FreeBSD.ORG Subject: Re: ATAPI related patch .. Message-ID: <34F23AD3.31DFF4F5@whistle.com> References: <199802240235.TAA13911@usr05.primenet.com>
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Terry Lambert wrote: > > Talk to Julian; we hashed this all out over a whiteboard one night > when I wanted to start using the 8-bit field, take the page mapping > hit, and either go with the page that was there or read partial > pages from disk for the MSDOSFS case where the 1k "blocks" began > at a one block offset (possible on some older geometry drives). I > was being less ambitious, in that I only wanted to handle runs of > blocks in 512b multiples at (possible) multiple minus 1 non-zero > offsets. Just the 1k disk/2k optical media/msdosfs non-even > cylinder boundry cases... > > Julian's soloution is more correct, but it's a lot of work to support > arbitrary block sizes (*especially* if the block size happens to be > prime(!)...). duh I remember the conversation but I'm dammed if I can rememeber my solution :-) (did it have to do with getpage/putpage or something? (or am I thinking'of the wrong conversation?)) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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