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RE: [ogfs-dev]ogfs_jadd and EVMS FSIM



Thanks for all the info . . . I'll put it on my todo list.

-- Ben --

> -----Original Message-----
> From: Kevin Corry [mailto:kevcorry@us.ibm.com]
> Sent: Tuesday, April 22, 2003 11:00 AM
> To: opengfs-devel@lists.sourceforge.net; Greg Freemyer; Dominik Vogt
> Subject: Re: [ogfs-dev]ogfs_jadd and EVMS FSIM
> 
> 
> On Tuesday 22 April 2003 09:31, Greg Freemyer wrote:
> >  >>  Also, don't forget about the BLKGETSIZE64 ioctl, if 
> you are planning
> >  >> on supporting >2TB devices. Keep in mind, however, that 
> this ioctl
> >  >> returns the
> >  >>  device size in bytes (*not* in sectors). It is also 
> only available
> >  >> since 2.4.10 ... but I'm assuming you don't really care about
> >  >> supporting really old
> >  >>  kernels.
> >
> > I know the XFS team uses BLKGETSIZE64 and it had been a 
> source of problems
> > due to drivers that didn't support it.
> >
> > I believe XFS now attempts a BLKGETSIZE64, but if it fails 
> they fall back
> > to BLKGETSIZE.
> >
> > If we want to try BLKGETSIZE64, we need to do the same thing.
> 
> Certainly. However, when ogfs gets ported to 2.5, this ioctl 
> will always be 
> available, since it is handled by the common block layer code.
> 
> -- 
> Kevin Corry
> kevcorry@us.ibm.com
> http://evms.sourceforge.net/
> 
> 
> 
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