Re: help with ext3 reserved inode

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Well, as it's a reserved inode, I didn't create it. stat <3> shows that
the inode has bad type... so this might be the problem. But how am I
supposed to initialize the inode fields if I can't read it?


On Sun, 2009-07-05 at 22:06 +0530, Manish Katiyar wrote:
> On Sun, Jul 5, 2009 at 7:30 PM, Donato Capitella<d.capitella@xxxxxx> wrote:
> > Hi there,
> > I need some help with a patch to the ext3 filesystem I'm developing. I'm
> > completelly new to kernel programming and I need to understand
> > practically how to use one of the ext3 reserved inode for storing a log.
> >
> > I thought it would be just as easy as getting the inode with the
> > ext3_iget() function, but it doesn't seem to be the case. For example,
> > if I try to load the third reserved inode like this :
> >
> > inode = ext3_iget(sb, 3);
> >
> > ext3_iget() fails somehow and crashes the process with a NULL pointer
> > reference. What am I missing here?
> Have you created the inode 3 ? What entries does it have ? What does
> "stat <3>" show from the debugfs ?
> 
> Thanks -
> Manish
> 
> 
> > How do you use a reserved inode? Can
> > anybody point to some documentation or project that uses reserved
> > inodes?
> >
> > I'm really stuck :(
> >
> > Thanks a lot,
> > Donato Capitella
> >
> >
> >
> > --
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> >
> >
> 
> 
> 


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