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Re: Wrong d_type presented by xfs_io

To: xfs@xxxxxxxxxxx
Subject: Re: Wrong d_type presented by xfs_io
From: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
Date: Fri, 14 Nov 2014 11:42:32 -0200
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In-reply-to: <20141114132359.GA36731@xxxxxxxxxxxxxxx>
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References: <20141114124807.GA2240@xxxxxxxxxxxxxxxxx> <20141114132359.GA36731@xxxxxxxxxxxxxxx>
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On Fri, Nov 14, 2014 at 08:24:00AM -0500, Brian Foster wrote:
> On Fri, Nov 14, 2014 at 10:48:10AM -0200, Carlos Maiolino wrote:
> > Hi guys,
> > 
> > I've been looking through an issue raised by Brian, regarding my 
> > RENAME_EXCHANGE
> > patchset, where, apparently, the d_type of some files are reseted during the
> > exchange. Brian presented an example here:
> > 
> > http://oss.sgi.com/archives/xfs/2014-11/msg00170.html
> > 
> > When trying to debug it, I've been trying to create and rename some FS 
> > objects
> > to try to reproduce the issue, but, all the files I've been creating are 
> > shown
> > as DT_UNKNOWN type:
> > 
> 
> Hi Carlos,
> 
> I suspect you aren't using a v5 superblock. You can do that by passing
> '-m crc=1' to mkfs. Does d_type work once you're on v5?
>

Yes, it works, thanks man :)

 
> Brian
> 
> > ex:
> > 
> > /dev/vdb2 on /xfs/scratch type xfs 
> > (rw,relatime,seclabel,attr2,inode64,noquota)
> > 
> > [root@localhost scratch]# mkdir /xfs/scratch/dir1
> > 
> > [root@localhost scratch]# xfs_io -c "readdir -v" /xfs/scratch/
> > 
> > 00000006: d_ino: 0x00000083 d_off: 0x00000200 d_reclen: 0x18 d_type: 
> > DT_UNKNOWN
> > d_name: dir1
> > 
> > 
> > [root@localhost scratch]# mknod /xfs/scratch/mybdev b 253 19
> > 
> > 00000008: d_ino: 0x00000084 d_off: 0x00000200 d_reclen: 0x20 d_type: 
> > DT_UNKNOWN
> > d_name: mybdev
> > 
> > 
> > 
> > 
> > So, anyone knows if is there any problem with xfs_io, or, if I'm doing 
> > something
> > wrong here?
> > 
> > [root@localhost scratch]# xfs_io -V
> > xfs_io version 3.2.1
> > 
> > 
> > or maybe, we have a bug somewhere else.
> > 
> > 
> > Cheers
> > 
> > -- 
> > Carlos
> > 
> > _______________________________________________
> > xfs mailing list
> > xfs@xxxxxxxxxxx
> > http://oss.sgi.com/mailman/listinfo/xfs
> 
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-- 
Carlos

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