Re: [RFC] [PATCH 2.6.37-rc5-tip 8/20] 8: uprobes: mmap and forkhooks.

[Steven Rostedt]

On Tue, 2011-01-25 at 13:15 +0100, Peter Zijlstra wrote:
> On Thu, 2010-12-16 at 15:28 +0530, Srikar Dronamraju wrote:

> > +static void search_within_subtree(struct rb_node *n, struct inode *inode,
> > +               struct list_head *tmp_list)
> > +{
> > +       struct rb_node *p;
> > +
> > +       if (p)
> > +               __search_within_subtree(p, inode, tmp_list);
> > +
> > +       p = n->rb_right;
> > +       if (p)
> > +               __search_within_subtree(p, inode, tmp_list);
> > +} 
> 
> Whee recursion FTW!, you just blew your kernel stack :-)
> 
> Since you sort inode first, offset second, I think you can simply look
> for the first matching inode entry and simply rb_next() until you don't
> match.

Not to mention that p is uninitialized. Did this code ever work?

-- Steve


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