linux-kernel - [PATCH 15/22] mm/damon/modules-common: implement a stats parameters generator macro

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Date:   Tue, 13 Sep 2022 17:44:42 +0000
From:   SeongJae Park <sj@...nel.org>
To:     SeongJae Park <sj@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     damon@...ts.linux.dev, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 15/22] mm/damon/modules-common: implement a stats parameters generator macro

DAMON_RECLAIM and DAMON_LRU_SORT have module parameters for DAMOS
statistics that having same names.  This commit implements a macro for
generating such module parameters so that we can reuse later.

Signed-off-by: SeongJae Park <sj@...nel.org>
---
 mm/damon/modules-common.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/mm/damon/modules-common.h b/mm/damon/modules-common.h
index 4c2ce84869d5..ed973e0770ae 100644
--- a/mm/damon/modules-common.h
+++ b/mm/damon/modules-common.h
@@ -23,3 +23,15 @@
 	module_param_named(wmarks_high, wmarks.high, ulong, 0600);	\
 	module_param_named(wmarks_mid, wmarks.mid, ulong, 0600);	\
 	module_param_named(wmarks_low, wmarks.low, ulong, 0600);
+
+#define DEFINE_DAMON_MODULES_DAMOS_STATS_PARAMS(stat, try_name,		\
+		succ_name, qt_exceed_name)				\
+	module_param_named(nr_##try_name, stat.nr_tried, ulong, 0400);	\
+	module_param_named(bytes_##try_name, stat.sz_tried, ulong,	\
+			0400);						\
+	module_param_named(nr_##succ_name, stat.nr_applied, ulong,	\
+			0400);						\
+	module_param_named(bytes_##succ_name, stat.sz_applied, ulong,	\
+			0400);						\
+	module_param_named(qt_exceed_name, stat.qt_exceeds, ulong,	\
+			0400);
-- 
2.25.1