[PATCH 1/2] [XFS] Validate log feature fields correctly

[Dave Chinner]

On Sun, Mar 15, 2009 at 11:15:51AM -0400, Christoph Hellwig wrote:
> On Sun, Mar 15, 2009 at 10:25:41PM +1100, Dave Chinner wrote:
> > If the large log sector size feature bit is set in the
> > superblock by accident (say disk corruption), the then
> > fields that are now considered valid are not checked on
> > production kernels. The checks are present as ASSERT
> > statements so cause a panic on a debug kernel.
> > 
> > Change this so that the fields are validity checked if
> > the feature bit is set and abort the log mount if the
> > fields do not contain valid values.
> > 
> > Reported-by: Eric Sesterhenn <snakebyte at gmx.de>
> > Signed-off-by: Dave Chinner <david at fromorbit.com>
> 
> Looks good to me, but wouldn't be easier to rad if the various sizes
> in the error messages were reported decimal instead of in hex?

I just find large numbers easier to parse in hex, especially as
we are expecting power-of-2 type numbers to come out of this.
I'll change it....

> Reviewed-by: Christoph Hellwig <hch at lst.de>
> 
> >  }	/* xlog_alloc_log */
> 
> any maybe remove this comment while you're at it?

Ok.

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com