Date: Wed, 14 May 1997 11:24:44 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: freebsd-current@FreeBSD.ORG Subject: Re: Big problem with b_blkno Message-ID: <19970514112444.NE35672@uriah.heep.sax.de> In-Reply-To: <199705140430.OAA28175@godzilla.zeta.org.au>; from Bruce Evans on May 14, 1997 14:30:31 %2B1000 References: <199705140430.OAA28175@godzilla.zeta.org.au>
next in thread | previous in thread | raw e-mail | index | archive | help
As Bruce Evans wrote: > Actually, this is for character device drivers that use physio() > (usually via rawread() or rawwrite()). It doesn't affect drivers that > use copyin/out() or uiomove() directly. It's for all device drivers that use strategy() IO. Of course, it's apparent for the physio() entry point, but strategy is called by other callers than physio. If we (hypothetical case) want to support an audio filesystem on CD-DA media, the block device functions also need to cope with a blocksize of 2352. That's why i didn't want to special-case physio. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19970514112444.NE35672>