linux-kernel - [PATCH] vmscan: add task name to warn_scan

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Message-Id: <1322027721-23677-1-git-send-email-kosaki.motohiro@jp.fujitsu.com>
Date:	Wed, 23 Nov 2011 00:55:20 -0500
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	unlisted-recipients:; (no To-header on input)
Cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Andrew Morton <akpm@...ux-foundation.org> (commit_signer:71/87=82%),
	Mel Gorman <mgorman@...e.de> (commit_signer:39/87=45%),
	Minchan Kim <minchan.kim@...il.com> (commit_signer:32/87=37%),
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> (commit_signer:26/87=30%),
	Johannes Weiner <jweiner@...hat.com> (commit_signer:21/87=24%),
	linux-mm@...ck.org (open list:MEMORY MANAGEMENT),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] vmscan: add task name to warn_scan_unevictable() messages

If we need to know a usecase, caller program name is critical important.
Show it.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc: Johannes Weiner <hannes@...xchg.org>
---
 mm/vmscan.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index a1893c0..29d163e 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3448,9 +3448,10 @@ void scan_mapping_unevictable_pages(struct address_space *mapping)
 static void warn_scan_unevictable_pages(void)
 {
 	printk_once(KERN_WARNING
-		    "The scan_unevictable_pages sysctl/node-interface has been "
+		    "%s: The scan_unevictable_pages sysctl/node-interface has been "
 		    "disabled for lack of a legitimate use case.  If you have "
-		    "one, please send an email to linux-mm@...ck.org.\n");
+		    "one, please send an email to linux-mm@...ck.org.\n",
+		    current->comm);
 }
 
 /*
-- 
1.7.1

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