linux-kernel - Re: [PATCH v2 3/4] uprobes/powerpc: Introduce routines for save/restore context

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Message-ID: <20121203151544.GB6333@in.ibm.com>
Date:	Mon, 3 Dec 2012 20:45:44 +0530
From:	Ananth N Mavinakayanahalli <ananth@...ibm.com>
To:	"Suzuki K. Poulose" <suzuki@...ibm.com>
Cc:	bigeasy@...utronix.de, oleg@...hat.com, srikar@...ux.vnet.ibm.com,
	peterz@...radead.org, benh@...nel.crashing.org, mingo@...e.hu,
	anton@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/4] uprobes/powerpc: Introduce routines for
	save/restore context

On Mon, Dec 03, 2012 at 08:39:35PM +0530, Suzuki K. Poulose wrote:
> From: Suzuki K. Poulose <suzuki@...ibm.com>
> 
> Introduce routines for saving and restoring the context
> befre/after the single step. No functional changes involved.
> 
> These will be extended later to save/restore more info about
> the process once we replace the ptrace helpers.
> 
> Signed-off-by: Suzuki K. Poulose <suzuki@...ibm.com>
> ---
>  arch/powerpc/kernel/uprobes.c |   16 +++++++++++++---
>  1 file changed, 13 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/uprobes.c b/arch/powerpc/kernel/uprobes.c
> index bc77834..1a62353 100644
> --- a/arch/powerpc/kernel/uprobes.c
> +++ b/arch/powerpc/kernel/uprobes.c
> @@ -52,6 +52,16 @@ int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe,
>  	return 0;
>  }
> 
> +static void uprobe_save_context_sstep(struct arch_uprobe_task *autask)
> +{
> +	autask->saved_trap_nr = current->thread.trap_nr;
> +}
> +
> +static void uprobe_restore_context_sstep(struct arch_uprobe_task *autask)
> +{
> +	current->thread.trap_nr = autask->saved_trap_nr;
> +}

Can't the two above be inline?

Ananth

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