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Re: [Cluster-devel] [PATCH] mkfs.gfs2: Follow symlinks before checking device contents


On 6/20/2012 6:15 PM, Bob Peterson wrote:
> ----- Original Message -----
> | +	absname = canonicalize_file_name(sdp->device_name);
> Hi Andy,
> Thanks for the patch. I just wanted to point out that in the past we've
> used realpath rather than canonicalize_file_name. For example, see this patch
> we did a long time ago to gfs2_tool:
> http://git.fedorahosted.org/git/?p=cluster.git;a=commitdiff;h=e70898cfa09939a7100a057433fff3a4ad666bdd
> It would be nice if our use was consistent. I'm not sure if there's an
> advantage of one over the other. If canonicalize_file_name is now preferred
> upstream over realpath, we should probably replace all occurrences of that.
> On the other hand, if realpath is now preferred upstream, we should adjust
> this patch to use it instead. AFAIK, they are the same, and I don't have a
> personal preference; whatever is most favoured by the upstream community. :)
> Otherwise, the patch looks good.

I donĀ“t remember what other mkfs.* tools do, but if I would prefer to
see something like:

# ./mkfs.gfs2 -p lock_nolock /dev/vg/test
WARNING: /dev/vg/test appears to be a symlink to /dev/real/device
This will destroy any data on /dev/real/device
It appears to contain: RANDOM_FS_OF_DOOM (blocksize......)


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