Re: [PATCH] rcu: don't allocate bootmem from rcu_init

["Paul E. McKenney" <paulmck@linux.vnet.ibm.com>]

On Tue, Mar 26, 2013 at 11:35:16AM -0400, Sasha Levin wrote:
> When rcu_init is called we already have slab working, allocating bootmem
> at that point results in warnings and an allocation from slab.

Good catch, queued for 3.11, thank you!

							Thanx, Paul

> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
> ---
>  kernel/rcutree_plugin.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
> index d084ae3..73bac82 100644
> --- a/kernel/rcutree_plugin.h
> +++ b/kernel/rcutree_plugin.h
> @@ -87,7 +87,7 @@ static void __init rcu_bootup_announce_oddness(void)
>  #ifdef CONFIG_RCU_NOCB_CPU
>  #ifndef CONFIG_RCU_NOCB_CPU_NONE
>  	if (!have_rcu_nocb_mask) {
> -		alloc_bootmem_cpumask_var(&rcu_nocb_mask);
> +		alloc_cpumask_var(&rcu_nocb_mask, GFP_KERNEL);
>  		have_rcu_nocb_mask = true;
>  	}
>  #ifdef CONFIG_RCU_NOCB_CPU_ZERO
> -- 
> 1.8.1.5
>