linux-kernel - Re: [RFC] [PATCH 2.6.37-rc5-tip 8/20] 8: uprobes: mmap and fork hooks.

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Date:	Thu, 27 Jan 2011 12:03:57 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:	Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Christoph Hellwig <hch@...radead.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Oleg Nesterov <oleg@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	SystemTap <systemtap@...rces.redhat.com>,
	Jim Keniston <jkenisto@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: Re: [RFC] [PATCH 2.6.37-rc5-tip 8/20]  8: uprobes: mmap and fork
 hooks.

On Wed, 2011-01-26 at 14:36 +0530, Srikar Dronamraju wrote:

> > Not to mention that p is uninitialized. Did this code ever work?
> 
> I think the original patch that I sent had p initialized. I think it got
> dropped off by Peter when he replied. Please do confirm.


> +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);
> +}
> +
> 
The above is from the original patch. 'p' does not look initialized to
me.

-- Steve


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