Re: [PATCH] mm: fix up the vmscan stat in vmstat

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On Thu, 12 Apr 2012 11:03:02 -0700
Ying Han <yinghan@xxxxxxxxxx> wrote:

> It is always confusing on stat "pgsteal" where it counts both direct
> reclaim as well as background reclaim. However, we have "kswapd_steal"
> which also counts background reclaim value.
> 
> This patch fixes it and also makes it match the existng "pgscan_" stats.
> 
> Test:
> pgsteal_kswapd_dma32 447623
> pgsteal_kswapd_normal 42272677
> pgsteal_kswapd_movable 0
> pgsteal_direct_dma32 2801
> pgsteal_direct_normal 44353270
> pgsteal_direct_movable 0
> 
> Signed-off-by: Ying Han <yinghan@xxxxxxxxxx>
> ---
>  include/linux/vm_event_item.h |    5 +++--
>  mm/vmscan.c                   |   11 ++++++++---
>  mm/vmstat.c                   |    4 ++--

I was going to have a big whine about the failure to update the
/proc/vmstat documentation.  But we don't have any /proc/vmstat
documentation.  That was a sneaky labor-saving device.

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