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From: Hugh Dickins <hughd@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>, Rik van Riel <riel@redhat.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michel Lespinasse <walken@google.com>,
	Ying Han <yinghan@google.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 5/4] mm: remove unevictable_pgs_mlockfreed
Date: Fri, 21 Sep 2012 15:56:11 -0700 (PDT)	[thread overview]
Message-ID: <alpine.LSU.2.00.1209211550180.23812@eggly.anvils> (raw)
In-Reply-To: <20120921124715.GD11157@csn.ul.ie>

Simply remove UNEVICTABLE_MLOCKFREED and unevictable_pgs_mlockfreed
line from /proc/vmstat: Johannes and Mel point out that it was very
unlikely to have been used by any tool, and of course we can restore
it easily enough if that turns out to be wrong.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michel Lespinasse <walken@google.com>
Cc: Ying Han <yinghan@google.com>
---
 include/linux/vm_event_item.h |    1 -
 mm/vmstat.c                   |    1 -
 2 files changed, 2 deletions(-)

--- 3.6-rc6.orig/include/linux/vm_event_item.h	2012-09-18 20:04:42.000000000 -0700
+++ 3.6-rc6/include/linux/vm_event_item.h	2012-09-21 15:13:26.608016171 -0700
@@ -52,7 +52,6 @@ enum vm_event_item { PGPGIN, PGPGOUT, PS
 		UNEVICTABLE_PGMUNLOCKED,
 		UNEVICTABLE_PGCLEARED,	/* on COW, page truncate */
 		UNEVICTABLE_PGSTRANDED,	/* unable to isolate on unlock */
-		UNEVICTABLE_MLOCKFREED,	/* no longer useful: always zero */
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 		THP_FAULT_ALLOC,
 		THP_FAULT_FALLBACK,
--- 3.6-rc6.orig/mm/vmstat.c	2012-09-18 20:04:42.000000000 -0700
+++ 3.6-rc6/mm/vmstat.c	2012-09-21 15:13:43.724017386 -0700
@@ -781,7 +781,6 @@ const char * const vmstat_text[] = {
 	"unevictable_pgs_munlocked",
 	"unevictable_pgs_cleared",
 	"unevictable_pgs_stranded",
-	"unevictable_pgs_mlockfreed",	/* no longer useful: always zero */
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	"thp_fault_alloc",

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  reply	other threads:[~2012-09-21 22:56 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-19  3:51 [PATCH 1/4] mm: fix invalidate_complete_page2 lock ordering Hugh Dickins
2012-09-19  3:53 ` [PATCH 2/4] mm: remove vma arg from page_evictable Hugh Dickins
2012-09-19 16:46   ` Johannes Weiner
2012-09-21 12:30   ` Mel Gorman
2012-09-19  3:55 ` [PATCH 3/4] mm: clear_page_mlock in page_remove_rmap Hugh Dickins
2012-09-19 17:18   ` Johannes Weiner
2012-09-19 21:52     ` Hugh Dickins
2012-09-20 16:09       ` Johannes Weiner
2012-09-19  3:57 ` [PATCH 4/4] mm: remove free_page_mlock Hugh Dickins
2012-09-19 17:21   ` Johannes Weiner
2012-09-21 12:47   ` Mel Gorman
2012-09-21 22:56     ` Hugh Dickins [this message]
2012-09-21 23:32       ` [PATCH 5/4] mm: remove unevictable_pgs_mlockfreed Johannes Weiner
2012-09-19 16:44 ` [PATCH 1/4] mm: fix invalidate_complete_page2 lock ordering Johannes Weiner
2012-09-21 12:26 ` Mel Gorman

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