Re: [RFC][PATCH 02/26] mm, mpol: Remove NUMA_INTERLEAVE_HIT

[Johannes Weiner <hannes@cmpxchg.org>]

Hi Peter,

On Fri, Mar 16, 2012 at 03:40:30PM +0100, Peter Zijlstra wrote:
> Since the NUMA_INTERLEAVE_HIT statistic is useless on its own; it wants
> to be compared to either a total of interleave allocations or to a miss
> count, remove it.
> 
> Fixing it would be possible, but since we've gone years without these
> statistics I figure we can continue that way.
> 
> This cleans up some of the weird MPOL_INTERLEAVE allocation exceptions.
> 
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
> ---

> @@ -111,7 +111,6 @@ enum zone_stat_item {
>  	NUMA_HIT,		/* allocated in intended node */
>  	NUMA_MISS,		/* allocated in non intended node */
>  	NUMA_FOREIGN,		/* was intended here, hit elsewhere */
> -	NUMA_INTERLEAVE_HIT,	/* interleaver preferred this zone */
>  	NUMA_LOCAL,		/* allocation from local node */
>  	NUMA_OTHER,		/* allocation from other node */
>  #endif

Can you guys include/fold this?

---
From: Johannes Weiner <hannes@cmpxchg.org>
Subject: [patch] mm: fix vmstat names-values off-by-one

"mm/mpol: Remove NUMA_INTERLEAVE_HIT" removed the NUMA_INTERLEAVE_HIT
item from the zone_stat_item enum, but left the corresponding name
string for it in the vmstat_text array.  As a result, all counters
that follow it have their name offset by one from their value.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
---
 mm/vmstat.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 1bbbbd9..e4db312 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -717,7 +717,6 @@ const char * const vmstat_text[] = {
 	"numa_hit",
 	"numa_miss",
 	"numa_foreign",
-	"numa_interleave",
 	"numa_local",
 	"numa_other",
 #endif
-- 
1.7.7.6