Already taken care of by
http://lkml.kernel.org/r/c7df37c8665134654a17aaeb8b9f6ace1d6db58b.1476239034.git....@perches.com
maybe it just fell through the cracks...

On Tue 18-10-16 12:34:17, Mark Rutland wrote:
> Recently, printk was reworked in commit:
> 
>   4bcc595ccd80decb ("printk: reinstate KERN_CONT for printing continuation
>   lines")
> 
> As of this commit, printk calls missing KERN_CONT will have a linebreak
> inserted implicitly.
> 
> In show_free_areas, we miss KERN_CONT in a few cases, and as a result
> prints are unexpectedly split over a number of lines, making them
> difficult to read (in v4.9-rc1).
> 
> This patch uses pr_cont (with uits implicit KERN_CONT) to mark all
> continued prints that occur withing a show_free_areas() call. Note that
> show_migration_types() is only called by show_free_areas().
> Depending on CONFIG_NUMA a printk after show_node() may or may not be a
> continuation, but follows an explicit newline if not (and thus marking
> it as a continuation should not be harmful).
> 
> Signed-off-by: Mark Rutland <mark.rutl...@arm.com>
> Cc: Andrew Morton <a...@linux-foundation.org>
> Cc: Vlastimil Babka <vba...@suse.cz>
> Cc: Mel Gorman <mgor...@techsingularity.net>
> Cc: linux...@kvack.org
> Cc: linux-kernel@vger.kernel.org
> ---
>  mm/page_alloc.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 2b3bf67..833f271 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -4224,7 +4224,7 @@ static void show_migration_types(unsigned char type)
>       }
>  
>       *p = '\0';
> -     printk("(%s) ", tmp);
> +     pr_cont("(%s) ", tmp);
>  }
>  
>  /*
> @@ -4335,7 +4335,7 @@ void show_free_areas(unsigned int filter)
>                       free_pcp += per_cpu_ptr(zone->pageset, cpu)->pcp.count;
>  
>               show_node(zone);
> -             printk("%s"
> +             pr_cont("%s"
>                       " free:%lukB"
>                       " min:%lukB"
>                       " low:%lukB"
> @@ -4382,8 +4382,8 @@ void show_free_areas(unsigned int filter)
>                       K(zone_page_state(zone, NR_FREE_CMA_PAGES)));
>               printk("lowmem_reserve[]:");
>               for (i = 0; i < MAX_NR_ZONES; i++)
> -                     printk(" %ld", zone->lowmem_reserve[i]);
> -             printk("\n");
> +                     pr_cont(" %ld", zone->lowmem_reserve[i]);
> +             pr_cont("\n");
>       }
>  
>       for_each_populated_zone(zone) {
> @@ -4394,7 +4394,7 @@ void show_free_areas(unsigned int filter)
>               if (skip_free_areas_node(filter, zone_to_nid(zone)))
>                       continue;
>               show_node(zone);
> -             printk("%s: ", zone->name);
> +             pr_cont("%s: ", zone->name);
>  
>               spin_lock_irqsave(&zone->lock, flags);
>               for (order = 0; order < MAX_ORDER; order++) {
> @@ -4412,11 +4412,11 @@ void show_free_areas(unsigned int filter)
>               }
>               spin_unlock_irqrestore(&zone->lock, flags);
>               for (order = 0; order < MAX_ORDER; order++) {
> -                     printk("%lu*%lukB ", nr[order], K(1UL) << order);
> +                     pr_cont("%lu*%lukB ", nr[order], K(1UL) << order);
>                       if (nr[order])
>                               show_migration_types(types[order]);
>               }
> -             printk("= %lukB\n", K(total));
> +             pr_cont("= %lukB\n", K(total));
>       }
>  
>       hugetlb_show_meminfo();
> -- 
> 1.9.1

-- 
Michal Hocko
SUSE Labs

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