linux-kernel - Re: [PATCH 5/6] uprobes: don't use loff

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Message-ID: <20120614083826.GA2964@gmail.com>
Date:	Thu, 14 Jun 2012 10:38:26 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Ananth N Mavinakayanahalli <ananth@...ibm.com>
Cc:	Oleg Nesterov <oleg@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Anton Arapov <anton@...hat.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/6] uprobes: don't use loff_t for the valid virtual
 address


* Ananth N Mavinakayanahalli <ananth@...ibm.com> wrote:

> On Wed, Jun 13, 2012 at 08:51:06PM +0200, Oleg Nesterov wrote:
> > loff_t looks confusing when it is used for the virtual address.
> > Change map_info and install_breakpoint/remove_breakpoint paths
> > to use "unsigned long".
> > 
> > The patch doesn't change vma_address(), it can't return "long"
> > because it is used to verify the mapping. But probably this
> > needs some cleanups too.
> 
> Oleg,
> 
> As you mentioned in another email, this conflicts with my 
> [1/2] preparatory patch for the powerpc port. [...]

Note, I already merged your preparatory patch into tip:perf/core 
a couple of days ago:

 7eb9ba5ed312 uprobes: Pass probed vaddr to arch_uprobe_analyze_insn()

So as long as Oleg is working on top of -tip there should be no 
conflict.

Thanks,

	Ingo
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