Re: losetup -a only reporting a maximum of 256 loop devices

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that would be great - thanks!

> -----Ursprüngliche Nachricht-----
> Von: Karel Zak <kzak@xxxxxxxxxx>
> Gesendet: 02.11.07 00:24:52
> An: devzero@xxxxxx
> CC: util-linux-ng@xxxxxxxxxxxxxxx
> Betreff: Re: losetup -a only reporting a maximum of 256 loop devices


> 
> On Thu, Nov 01, 2007 at 09:50:36PM +0100, devzero@xxxxxx wrote:
> > > Read the code. It doesn't check for all devices in range 0..256 -- it
> > > breaks the for() loop when a /dev/loopN doesn't exist. For example on
> > > my system it doesn't check for more than nine device. I don't see a
> > > problem with a huge limit.
> > 
> > ah, ok - thanks for explaining.
> > but, anyway - it`s a little bit weird that it stops checking if
> > there is a "gap" in between.
> 
>  Yes, "gaps" are problem. I think we can try to use /sys/block/loop*
>  for "losetup -a" and opendir("/dev") + readdir() for "losetup -f".
> 
>  That's probably better than blindly try to call stat(2) for all
>  possible loop devices. I'll prepare a patch next week.
> 
>     Karel
> 
> -- 
>  Karel Zak  <kzak@xxxxxxxxxx>
> 


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