Re: [Ocfs2-devel] [git patches] Ocfs2 and Configfs updates for2.6.27

From: Joel Becker
Date: Fri Jul 18 2008 - 18:23:41 EST

On Fri, Jul 18, 2008 at 10:48:03AM +0200, Louis Rilling wrote:
> > Linus,
> > Pull this to get the revert and the PTR_ERR() version:
> >
> > git:// configfs-fixup-ptr-error
> >
> > It's tested with the same testing I did before - ocfs2 and netconsole.
> While this new version looks ok, it seems that it still allows client
> subsystems to return NULL in ->make_group()/->make_item(), in which case
> configfs_mkdir() turns the result into -ENOMEM. Maybe this is intended to
> smoothly update out-of-tree subsystems? I'd suggest to schedule a removal
> of this backward compatibility, and display an error log to encourage
> fixing the subsystems that still return NULL.

It is precisely to keep out-of-tree modules from crashing.
There's no easy way to make them know it changed otherwise :-) It could
certainly BUG or WARN before making the fixup.



"I'm drifting and drifting
Just like a ship out on the sea.
Cause I ain't got nobody, baby,
In this world to care for me."

Joel Becker
Principal Software Developer
E-mail: joel.becker@xxxxxxxxxx
Phone: (650) 506-8127
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