linux-kernel - [PATCH 3.14 35/37] vmscan: reclaim_clean_pages_from_list() must use mod_zone_page

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Date:	Tue,  7 Oct 2014 16:19:52 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Christoph Lameter <cl@...ux.com>,
	Grygorii Strashko <grygorii.strashko@...com>,
	Tejun Heo <tj@...nel.org>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Ingo Molnar <mingo@...nel.org>, Mel Gorman <mel@....ul.ie>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>
Subject: [PATCH 3.14 35/37] vmscan: reclaim_clean_pages_from_list() must use mod_zone_page_state()

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christoph Lameter <cl@...ux.com>

commit 83da7510058736c09a14b9c17ec7d851940a4332 upstream.

Seems to be called with preemption enabled.  Therefore it must use
mod_zone_page_state instead.

Signed-off-by: Christoph Lameter <cl@...ux.com>
Reported-by: Grygorii Strashko <grygorii.strashko@...com>
Tested-by: Grygorii Strashko <grygorii.strashko@...com>
Cc: Tejun Heo <tj@...nel.org>
Cc: Santosh Shilimkar <santosh.shilimkar@...com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Mel Gorman <mel@....ul.ie>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Mel Gorman <mgorman@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 mm/vmscan.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1144,7 +1144,7 @@ unsigned long reclaim_clean_pages_from_l
 			TTU_UNMAP|TTU_IGNORE_ACCESS,
 			&dummy1, &dummy2, &dummy3, &dummy4, &dummy5, true);
 	list_splice(&clean_pages, page_list);
-	__mod_zone_page_state(zone, NR_ISOLATED_FILE, -ret);
+	mod_zone_page_state(zone, NR_ISOLATED_FILE, -ret);
 	return ret;
 }
 


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