[RESEND PATCH] ARM: fix 'unannotated irqs-on' lockdep warning

[Russell King - ARM Linux]

On Sun, May 23, 2010 at 07:48:48PM +0800, tom.leiming at gmail.com wrote:
> diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
> index 2c1db77..ed471a7 100644
> --- a/arch/arm/kernel/entry-common.S
> +++ b/arch/arm/kernel/entry-common.S
> @@ -58,7 +58,7 @@ work_resched:
>   */
>  ENTRY(ret_to_user)
>  ret_slow_syscall:
> -	disable_irq				@ disable interrupts
> +	disable_irq_notrace				@ disable interrupts

I think this one does need to be traced - the pending work functions are
all C code which could call back into lockdep.

Also, I'm nervious about applying this patch without seeing more people
test it.