patches/old/mm-mglru-drop-unused-parameter.patch

From: Kinsey Ho <kinseyho@google.com>
Subject: mm/mglru: drop unused parameter
Date: Wed, 14 Feb 2024 06:05:34 +0000

Patch series "mm/mglru: code cleanup and refactoring"

This provides MGLRU code cleanup and refactoring for better readability.


This patch (of 5):

struct scan_control *sc is currently passed into try_to_inc_max_seq() and
run_aging().  This parameter is not used.

Drop the unused parameter struct scan_control *sc. No functional change.

Link: https://lkml.kernel.org/r/20240214060538.3524462-1-kinseyho@google.com
Link: https://lkml.kernel.org/r/20240214060538.3524462-2-kinseyho@google.com
Signed-off-by: Kinsey Ho <kinseyho@google.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Donet Tom <donettom@linux.vnet.ibm.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmscan.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/mm/vmscan.c~mm-mglru-drop-unused-parameter
+++ a/mm/vmscan.c
@@ -3816,7 +3816,7 @@ unlock:
 }
 
 static bool try_to_inc_max_seq(struct lruvec *lruvec, unsigned long max_seq,
-			       struct scan_control *sc, bool can_swap, bool force_scan)
+			       bool can_swap, bool force_scan)
 {
 	bool success;
 	struct lru_gen_mm_walk *walk;
@@ -4672,7 +4672,7 @@ static long get_nr_to_scan(struct lruvec
 		return nr_to_scan;
 
 	/* skip this lruvec as it's low on cold folios */
-	return try_to_inc_max_seq(lruvec, max_seq, sc, can_swap, false) ? -1 : 0;
+	return try_to_inc_max_seq(lruvec, max_seq, can_swap, false) ? -1 : 0;
 }
 
 static bool should_abort_scan(struct lruvec *lruvec, struct scan_control *sc)
@@ -5332,7 +5332,7 @@ static const struct seq_operations lru_g
 	.show = lru_gen_seq_show,
 };
 
-static int run_aging(struct lruvec *lruvec, unsigned long seq, struct scan_control *sc,
+static int run_aging(struct lruvec *lruvec, unsigned long seq,
 		     bool can_swap, bool force_scan)
 {
 	DEFINE_MAX_SEQ(lruvec);
@@ -5347,7 +5347,7 @@ static int run_aging(struct lruvec *lruv
 	if (!force_scan && min_seq[!can_swap] + MAX_NR_GENS - 1 <= max_seq)
 		return -ERANGE;
 
-	try_to_inc_max_seq(lruvec, max_seq, sc, can_swap, force_scan);
+	try_to_inc_max_seq(lruvec, max_seq, can_swap, force_scan);
 
 	return 0;
 }
@@ -5415,7 +5415,7 @@ static int run_cmd(char cmd, int memcg_i
 
 	switch (cmd) {
 	case '+':
-		err = run_aging(lruvec, seq, sc, swappiness, opt);
+		err = run_aging(lruvec, seq, swappiness, opt);
 		break;
 	case '-':
 		err = run_eviction(lruvec, seq, sc, swappiness, opt);
_