linux-kernel - [PATCH 1/3] Add a new field to struct shrinker

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Date:	Sat, 9 Jul 2016 04:43:31 -0400
From:	Janani Ravichandran <janani.rvchndrn@...il.com>
To:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Cc:	riel@...riel.com, akpm@...ux-foundation.org, hannes@...xchg.org,
	vdavydov@...tuozzo.com, mhocko@...e.com, vbabka@...e.cz,
	mgorman@...hsingularity.net, kirill.shutemov@...ux.intel.com,
	bywxiaobai@....com
Subject: [PATCH 1/3] Add a new field to struct shrinker

Struct shrinker does not have a field to uniquely identify the shrinkers
it represents. It would be helpful to have a new field to hold names of
shrinkers. This information would be useful while analyzing their
behavior using tracepoints.

---
 include/linux/shrinker.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 4fcacd9..431125c 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -52,6 +52,7 @@ struct shrinker {
 	unsigned long (*scan_objects)(struct shrinker *,
 				      struct shrink_control *sc);
 
+	const char *name;
 	int seeks;	/* seeks to recreate an obj */
 	long batch;	/* reclaim batch size, 0 = default */
 	unsigned long flags;
-- 
2.7.0