89f643bfac6b2446633f2d2e0d901299df125374acb04d74e32c75ff.patch

From eb69e7d13d7794afd530914aac567b83f3ab1507 Mon Sep 17 00:00:00 2001
From: Tzung-Bi Shih <tzungbi@chromium.org>
Date: Thu, 13 Jul 2023 10:21:23 +0800
Subject: [PATCH] FIXUP: CHROMIUM: Reland of add implementation of MGLRU in
 sysfs

The commit title should revise to "CHROMIUM: Add implementation
of MGLRU in sysfs".

Don't need to declare `run_aging` and `run_eviction` forward.  Remove
them.

Also move forward declaration `run_cmd` just before where it uses to
make the intent clear.

BUG=b:291009612
TEST=for arch in amd64-generic arm64-generic arm-generic; do \
       USE=buildtest emerge-"${arch}" chromeos-kernel-6_1; \
     done

Change-Id: I0674eb39ab39274a8319a9ffab11ea853db50e1b
Signed-off-by: Tzung-Bi Shih <tzungbi@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/4680852
Reviewed-by: Guenter Roeck <groeck@chromium.org>
---
 mm/vmscan.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index e05daf3ec4ee461010525197caa9188cd2158d20..7b742c4587677ed0955f0f93c74251040d90727e 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -5891,15 +5891,6 @@ static void lru_gen_change_state(bool enabled)
  *                          sysfs interface
  ******************************************************************************/
 
-static int run_aging(struct lruvec *lruvec, unsigned long seq, struct scan_control *sc,
-		     bool can_swap, bool force_scan);
-
-static int run_eviction(struct lruvec *lruvec, unsigned long seq, struct scan_control *sc,
-			int swappiness, unsigned long nr_to_reclaim);
-
-static int run_cmd(char cmd, int memcg_id, int nid, unsigned long seq,
-		   struct scan_control *sc, int swappiness, unsigned long opt);
-
 static ssize_t min_ttl_ms_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
 {
 	return sysfs_emit(buf, "%u\n", jiffies_to_msecs(READ_ONCE(lru_gen_min_ttl)));
@@ -6061,6 +6052,9 @@ static ssize_t show_lru_gen_admin(struct kobject *kobj, struct kobj_attribute *a
 	return buf_len;
 }
 
+static int run_cmd(char cmd, int memcg_id, int nid, unsigned long seq,
+		   struct scan_control *sc, int swappiness, unsigned long opt);
+
 static ssize_t store_lru_gen_admin(struct kobject *kobj, struct kobj_attribute *attr,
 				const char *src, size_t len)
 {
-- 
2.34.1