Re: 2.6.22-rc6(mm1) Unable to handle kernel NULL pointer dereference - git-bisect result

[Al Viro]

On Sun, Jul 08, 2007 at 11:38:20AM -0700, Linus Torvalds wrote:
> I do think that it would be even nicer to just have a function that fills 
> in the "struct nameidata" from the dfd. I think we should be able to: the 
> "struct file" really does have the "f_path" thing with both dentry and mnt 
> information, and that would clean up that whole ugly "filepointer-vs-nd" 
> thing a lot.
> 
> That would be an "Al cleanup", though. What do you think, Al?

I think that we need to go the other way round - gather nameidata
->nd and ->dentry into struct path and pass pointer to that instead...

But that's .23-rc1 fodder, if not .23-rc2 one (we might want to
do -rc2 with just that, to avoid conflicts with pending patches).
Definitely not for .22-final.
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