Date: Tue, 05 May 1998 19:19:50 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Julian Elischer <julian@whistle.com> Cc: Bruce Evans <bde@FreeBSD.ORG>, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG Subject: Re: cvs commit: src/sys/kern vfs_cluster.c Message-ID: <2008.894388790@critter.freebsd.dk> In-Reply-To: Your message of "Fri, 01 May 1998 09:39:37 PDT." <Pine.BSF.3.95.980501093134.1869G-100000@current1.whistle.com>
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It should really be a mount-option, shouldn't it ? Poul-Henning In message <Pine.BSF.3.95.980501093134.1869G-100000@current1.whistle.com>, Juli an Elischer writes: >Talking of clusterring.. > >One problem with clustering is the fact that the flag that dissallows >CLUSTERING is stored in the BDEVSW entry. > >from sys/conf.h: >#define D_NOCLUSTERR 0x10000 /* disables cluter read */ >#define D_NOCLUSTERW 0x20000 /* disables cluster write */ >#define D_NOCLUSTERRW (D_NOCLUSTERR | D_NOCLUSTERW) > > which is patently the wrong place for it. for several reasons: > >1/ different SCSI devices may have different ideas about clustering.. >2/ in DEVFS/SLICE, all disks come in through the same major number/devfs[] >entry no matter which driver they eventually get passed to. >3/ [bc]devsw entries will totally go away anyhow. -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." "ttyv0" -- What UNIX calls a $20K state-of-the-art, 3D, hi-res color terminal To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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