[PATCH v2 05/10] xfs: fix error handling in xfs_bulkstat

[Jeff Liu]

On 04/25 2014 14:48 PM, Christoph Hellwig wrote:
>> Moreover, this fix also get rid of the redundant user buffer count
>> pre-checkups as it has already been validated in upper callers.
> 
>> -	if (!ubcountp || *ubcountp <= 0) {
>> -		return EINVAL;
>> -	}
> 
> Probably better to have this as a separate patch.

Sometimes, I'd to put such kind of trivial fixes into a relative effective patch
if possible. But from another point of view, yep, have it as a separate patch would
make it more convenient for reviewer.

> 
>> -			/*
>> -			 * Loop as long as we're unable to read the
>> -			 * inode btree.
>> -			 */
>> -			while (error) {
>> -				agino += XFS_INODES_PER_CHUNK;
>> -				if (XFS_AGINO_TO_AGBNO(mp, agino) >=
>> -						be32_to_cpu(agi->agi_length))
>> -					break;
>> -				error = xfs_inobt_lookup(cur, agino,
>> -							 XFS_LOOKUP_GE, &tmp);
>> -				cond_resched();
>> -			}
> 
> This code goes back to 1995, but I still can't see how it would make
> sense.  I think we should get rid of this, but I'd also love to have
> Dave and Eric double check it as well.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>

Thanks,
-Jeff