linux-kernel - Re: [PATCH 7/7] uprobes: Make arch_uprobe_task->saved_trap

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Message-ID: <20120912122754.GB9582@linux.vnet.ibm.com>
Date:	Wed, 12 Sep 2012 17:57:54 +0530
From:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Anton Arapov <anton@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Roland McGrath <roland@...k.frob.com>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] uprobes: Make arch_uprobe_task->saved_trap_nr
 "unsigned int"

* Oleg Nesterov <oleg@...hat.com> [2012-09-03 17:26:20]:

> Make arch_uprobe_task->saved_trap_nr "unsigned int" and move it down
> after ->saved_scratch_register, this changes sizeof() from 24 to 16.
> 
> Signed-off-by: Oleg Nesterov <oleg@...hat.com>


Acked-by: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>

> ---
>  arch/x86/include/asm/uprobes.h |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/x86/include/asm/uprobes.h b/arch/x86/include/asm/uprobes.h
> index d561ff5..8ff8be7 100644
> --- a/arch/x86/include/asm/uprobes.h
> +++ b/arch/x86/include/asm/uprobes.h
> @@ -42,10 +42,10 @@ struct arch_uprobe {
>  };
> 
>  struct arch_uprobe_task {
> -	unsigned long			saved_trap_nr;
>  #ifdef CONFIG_X86_64
>  	unsigned long			saved_scratch_register;
>  #endif
> +	unsigned int			saved_trap_nr;
>  	unsigned int			saved_tf;
>  };
> 
> -- 
> 1.5.5.1
> 

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