[folded-merged] mm-add-max-swappiness-arg-to-lru_gen-for-anonymous-memory-only-update.patch removed from -mm tree

[folded-merged] mm-add-max-swappiness-arg-to-lru_gen-for-anonymous-memory-only-update.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm: add max swappiness arg to lru_gen for anonymous memory only
has been removed from the -mm tree.  Its filename was
     mm-add-max-swappiness-arg-to-lru_gen-for-anonymous-memory-only-update.patch

This patch was dropped because it was folded into mm-add-max-swappiness-arg-to-lru_gen-for-anonymous-memory-only.patch

------------------------------------------------------
From: Zhongkun He <hezhongkun.hzk@bytedance.com>
Subject: mm: add max swappiness arg to lru_gen for anonymous memory only
Date: Wed, 7 May 2025 15:10:57 +0800

 1) use strcmp instead of strncmp from Dan Carpenter
https://lore.kernel.org/all/aBHYT27M1tRxNLRj@stanley.mountain/
 2) If swappiness is not set, use the default value.

Link: https://lkml.kernel.org/r/20250507071057.3184240-1-hezhongkun.hzk@bytedance.com
Signed-off-by: Zhongkun He <hezhongkun.hzk@bytedance.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Yosry Ahmed <yosry.ahmed@linux.dev>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/vmscan.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/mm/vmscan.c~mm-add-max-swappiness-arg-to-lru_gen-for-anonymous-memory-only-update
+++ a/mm/vmscan.c
@@ -5592,7 +5592,7 @@ static ssize_t lru_gen_seq_write(struct
 		unsigned int memcg_id;
 		unsigned int nid;
 		unsigned long seq;
-		unsigned int swappiness = -1;
+		unsigned int swappiness;
 		unsigned long opt = -1;
 
 		cur = skip_spaces(cur);
@@ -5606,8 +5606,10 @@ static ssize_t lru_gen_seq_write(struct
 			break;
 		}
 
-		/* set by userspace for anonymous memory only */
-		if (!strncmp("max", swap_string, sizeof("max"))) {
+		if (n == 4)
+			swappiness = -1;
+		else if (!strcmp("max", swap_string)) {
+			/* set by userspace for anonymous memory only */
 			swappiness = SWAPPINESS_ANON_ONLY;
 		} else {
 			err = kstrtouint(swap_string, 0, &swappiness);
_

Patches currently in -mm which might be from hezhongkun.hzk@bytedance.com are

mm-add-swappiness=max-arg-to-memoryreclaim-for-only-anon-reclaim.patch
mm-vmscan-add-more-comments-about-cache_trim_mode.patch
mm-add-max-swappiness-arg-to-lru_gen-for-anonymous-memory-only.patch
mm-using-swappiness_anon_only-in-mglru.patch
mm-cma-set-early_pfn-and-bitmap-as-a-union-in-cma_memrange.patch