Re: Fwd: xfs_reno

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On 03/06/13 08:55, Hans-Peter Jansen wrote:
Hi Dave,

I tried to gather Barrys SOB, but failed so far. His trace ends in 2009 google
wise.

How is this case usually handled?

Here's the current state of things.

Cheers,
Pete


----------  Weitergeleitete Nachricht  ----------

Betreff: xfs_reno
Datum: Mittwoch, 6. März 2013, 12:52:19
Von: Hans-Peter Jansen<hpj@xxxxxxxxx>
An: bnaujok@xxxxxxx

Hi Barry,

attached is a slightly mangled version of your xfs_reno tool, that I badly
needed recently. While at it, I plan to submit it, as it saved my *ss. Thanks.

Apart from relocation to xfsprogs, I just changed this

+       log_message(LOG_DEBUG, "%s: %llu %lu %s", msg, node->ino,
+                       node->numpaths, node->paths[0]);

from %llu to %lu for the node->numpaths argument. It might still be wrong, as
numpath is defined as nlink_t which is a __u32 type, but the %s printed
garbage like this:

Scanning directory tree...
xfs_reno: add_node_path: ino 8611163235, path
/work/dlbase/hosts/11.2/pico/var/run/screens
xfs_reno: add_node_path: ino 8611163233, path
/work/dlbase/hosts/11.2/pico/var/run/pcscd/pcscd.events
xfs_reno: add_node_path: ino 8611163234, path
/work/dlbase/hosts/11.2/pico/var/run/uscreens
xfs_reno: nodehash: 8611163233 692488159933497345 ��]��f�e�
xfs_reno: nodehash: 8611163234 692366801337581569 ��]��f�e�
xfs_reno: nodehash: 8611163235 692223830466232321 ��]��f�e�

I guess, gcc is smart enough to see, that the struct members overlap here, and
prints the paths[0] argument as a %llu value. What do you think?

Anyway, I will revise this during the course of creating a xlstests test for
xfs_reno...

Do you allow me to add your Signed-off-by to this patch?

If you want to build this, apply both patches to xfsprogs.

TIA,
Pete



Have you been getting "Out of memory" warnings on your runs? I am.

Compiling, I get the warnings about having "\r" in the strings. For example:

reno/xfs_reno.c:1415: internationalized messages should not contain the `\r' escape sequence
                    ----------
I wonder if we should add a temp directory option. It seems to want to use the parent directory of the directory as a temporary. Below is the result of running xfs_reno on the target directory is "/mnt/xxx (changing the \r to <^M>\n for the email):

xfs_reno: directory: 128 1 /mn<^M>
xfs_reno: /mnt/xfs_reno_epdaJc: Cannet set target extended attributes<^M>
xfs_reno: failed to rename: '/mnt/xxx/origin' to '/mnt/xfs_reno_NXQLWI/origin'
<^M>
xfs_reno: unable to move directory contents: /mnt/xxx to /mnt/xfs_reno_NXQLWI
<^M>
xfs_reno: Cannot stat /mnt/xfs_reno_epdaJc: Inappropriate ioctl for device

<^M>
xfs_reno: unable to duplicate directory attributes: /mnt/xfs_reno_epdaJc
t/xxx
                    ------
/mnt is not an XFS filesystem. When mounting on the root, say /mnt, the message look like:

xfs_reno: Cannot stat //xfs_reno_epdaJc: Inappropriate ioctl for device

Thank-you,

--Mark Tinguely.

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