linux-kernel - Re: [PATCH 05/20] hexagon: Do not call do

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Date:	Fri, 1 Jun 2012 12:54:59 -0500
From:	Richard Kuo <rkuo@...eaurora.org>
To:	Richard Weinberger <richard@....at>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-hexagon@...r.kernel.org
Subject: Re: [PATCH 05/20] hexagon: Do not call do_signal() with irqs
 disabled

On Sat, May 26, 2012 at 12:04:21AM +0200, Richard Weinberger wrote:
> get_signal_to_deliver() calls try_to_freeze() which might sleep.
> 
> Cc: Richard Kuo <rkuo@...eaurora.org>
> Cc: linux-hexagon@...r.kernel.org
> Signed-off-by: Richard Weinberger <richard@....at>
> ---
>  arch/hexagon/kernel/signal.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c
> index 434866e..8403bfd 100644
> --- a/arch/hexagon/kernel/signal.c
> +++ b/arch/hexagon/kernel/signal.c
> @@ -22,6 +22,7 @@
>  #include <linux/syscalls.h>
>  #include <linux/freezer.h>
>  #include <linux/tracehook.h>
> +#include <linux/irqflags.h>
>  #include <asm/registers.h>
>  #include <asm/thread_info.h>
>  #include <asm/unistd.h>
> @@ -267,6 +268,8 @@ no_restart:
>  
>  void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags)
>  {
> +	local_irq_enable();
> +
>  	if (thread_info_flags & _TIF_SIGPENDING)
>  		do_signal(regs);
>  
> -- 
> 1.7.7.3
> 

Signed-off-by: Richard Kuo <rkuo@...eaurora.org>


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