unevictable lru: add event counting with statistics
authorLee Schermerhorn <lee.schermerhorn@hp.com>
Sun, 19 Oct 2008 03:26:40 +0000 (20:26 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 20 Oct 2008 15:50:26 +0000 (08:50 -0700)
commitbbfd28eee9fbd73e780b19beb3dc562befbb94fa
tree0e810fcd61501ef57e613a737593067b0bc61d40
parent894bc310419ac95f4fa4142dc364401a7e607f65
unevictable lru: add event counting with statistics

Fix to unevictable-lru-page-statistics.patch

Add unevictable lru infrastructure vm events to the statistics patch.
Rename the "NORECL_" and "noreclaim_" symbols and text strings to
"UNEVICTABLE_" and "unevictable_", respectively.

Currently, both the infrastructure and the mlocked pages event are
added by a single patch later in the series.  This makes it difficult
to add or rework the incremental patches.  The events actually "belong"
with the stats, so pull them up to here.

Also, restore the event counting to putback_lru_page().  This was removed
from previous patch in series where it was "misplaced".  The actual events
weren't defined that early.

Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/vmstat.h
mm/vmscan.c
mm/vmstat.c