[PATCH 4/9] xfs: add CRC checks to the AGFL

Ben Myers bpm at sgi.com
Wed Feb 27 17:35:37 CST 2013


Dave,

On Thu, Feb 28, 2013 at 10:31:55AM +1100, Dave Chinner wrote:
> On Thu, Feb 28, 2013 at 10:20:45AM +1100, Dave Chinner wrote:
> > On Wed, Feb 27, 2013 at 04:37:50PM -0600, Ben Myers wrote:
> > > Hi Dave,
> ....
> > > > +	case XFS_BLF_AGFL_BUF:
> > > > +		if (*(__be32 *)bp->b_addr != cpu_to_be32(XFS_AGFL_MAGIC)) {
> > > > +			xfs_warn(mp, "Bad AGFL block magic!");
> > > > +			ASSERT(0);
> > > > +		}
> > > > +		bp->b_ops = &xfs_agfl_buf_ops;
> > > > +		break;
> > > 
> > > Your changes for v2 in this section look good.
> > 
> > Actually, the above hunk is broken. The magic number should only be
> > checked for CRC enabled filesystems. My current code has this check,
> > though I thought I fixed that long before I reposted this series...
> 
> I just realised you're commenting on the original version of the
> patch series, no the new version I posted a couple of days ago. It
> is fixed in that version of the patch, so I'm not going totally
> crazy (yet!)....

Yep.  The new rev looks good.

> Can you switch over to the newer version of the patch set?

Will do.

-Ben



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