Re: [PATCH] mm/vmalloc.c: use rb_entry_safe

From	Michal Hocko <mhocko@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] mm/vmalloc.c: use rb_entry_safe
Date	2016-12-20 15:40 +0100
Message-ID	<sQtKa-6MJ-17@gated-at.bofh.it> (permalink)
References	<sQt7r-6hV-31@gated-at.bofh.it> <sQt7r-6hV-29@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Tue 20-12-16 21:57:43, Geliang Tang wrote:
> Use rb_entry_safe() instead of open-coding it.
> 
> Signed-off-by: Geliang Tang <geliangtang@gmail.com>

Acked-by: Michal Hocko <mhocko@suse.com>

> ---
>  mm/vmalloc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/vmalloc.c b/mm/vmalloc.c
> index a558438..b9999fc 100644
> --- a/mm/vmalloc.c
> +++ b/mm/vmalloc.c
> @@ -2309,7 +2309,7 @@ EXPORT_SYMBOL_GPL(free_vm_area);
>  #ifdef CONFIG_SMP
>  static struct vmap_area *node_to_va(struct rb_node *n)
>  {
> -	return n ? rb_entry(n, struct vmap_area, rb_node) : NULL;
> +	return rb_entry_safe(n, struct vmap_area, rb_node);
>  }
>  
>  /**
> -- 
> 2.9.3
> 

-- 
Michal Hocko
SUSE Labs

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[PATCH] mm/vmalloc.c: use rb_entry_safe Geliang Tang <geliangtang@gmail.com> - 2016-12-20 15:00 +0100
  Re: [PATCH] mm/vmalloc.c: use rb_entry_safe Michal Hocko <mhocko@kernel.org> - 2016-12-20 15:40 +0100

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