Date: Sat, 1 May 1999 13:43:33 +0930 From: Greg Lehey <grog@lemis.com> To: Matthew Jacob <mjacob@feral.com> Cc: Brad Knowles <brad@shub-internet.org>, FreeBSD current users <FreeBSD-current@FreeBSD.ORG> Subject: Re: Porting Greg Lehey's rawio.c from FreeBSD to Linux... Message-ID: <19990501134333.G80561@freebie.lemis.com> In-Reply-To: <Pine.LNX.4.04.9904302049430.9878-100000@feral.com>; from Matt Jacob on Fri, Apr 30, 1999 at 08:51:06PM -0700 References: <19990501095604.W80561@freebie.lemis.com> <Pine.LNX.4.04.9904302049430.9878-100000@feral.com>
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On Friday, 30 April 1999 at 20:51:06 -0700, Matt Jacob wrote:
>>
>> I don't really understand why you ask a FreeBSD group about it; it's a
>> Linux issue. FWIW, about the only area where you're liable to run
>> into difficulties is in the disk label handling round line 300, which
>> is pretty peripheral to the function: it's just there as one way of
>> finding out the size of the partition. You'll need in-depth Linux
>> information to even find out if Linux has an equivalent function.
>
> Open the device, and
>
> if (ioctl(fd, BLKGETSIZE, (caddr_t) &seeklim) < 0) {
>
> see <linux/fs.h>
Thanks for the info. Looking at this, it looks as if this ioctl is
for a block device. rawio uses character devices. Does that make a
difference?
Greg
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