[to-be-updated] mm-mglru-make-swappiness=1-file-reclaim-more-aggressive.patch removed from -mm tree

[to-be-updated] mm-mglru-make-swappiness=1-file-reclaim-more-aggressive.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/mglru: make swappiness=1 file reclaim more aggressive
has been removed from the -mm tree.  Its filename was
     mm-mglru-make-swappiness=1-file-reclaim-more-aggressive.patch

This patch was dropped because an updated version will be issued

------------------------------------------------------
From: "Barry Song (Xiaomi)" <baohua@kernel.org>
Subject: mm/mglru: make swappiness=1 file reclaim more aggressive
Date: Sat, 14 Nov 2026 02:55:40 +0800

In MGLRU, swappiness=200 favors anon reclaim, while swappiness=1 favors
file reclaim.  Swappiness=0 allows only file reclaim, while swappiness=201
allows only anon reclaim.  Thus, swappiness=1 and swappiness=200 are
counterparts for file and anon reclaim, respectively.

Before this patchset, get_type_to_scan() always returned LRU_GEN_ANON for
swappiness=200 and LRU_GEN_FILE for swappiness=1.

For swappiness=200, file_factor is set to 0 at higher reclaim priorities. 
Similarly, for swappiness=1, anon_factor is set to 0 at higher reclaim
priorities.  This makes the two settings behave similarly, although the
thresholds differ slightly based on testing.

This allows file pages to be reclaimed more aggressively and benefits
workloads that prioritize file reclaim by using swappiness=1.

Link: https://lore.kernel.org/20261113185541.70203-16-baohua@kernel.org
Signed-off-by: Barry Song (Xiaomi) <baohua@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <hui.zhu@linux.dev>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kunwu Chan <kunwu.chan@gmail.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: wang lian <lianux.mm@gmail.com>
Cc: <liuxiang.277@bytedance.com>
Cc: <lyugaofei@xiaomi.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Qi Zheng <qi.zheng@linux.dev>
Cc: Ridong Chen <ridong.chen@linux.dev>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: wangzicheng <wangzicheng@honor.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Bo Zhang <zhangbo56@xiaomi.com>
Cc: Hui Zhu <zhuhui@kylinos.cn>
Cc: Siddharth Chintamaneni <sidchintamaneni@gmail.com>
Cc: Bo Zhang <zhangbo0325@gmail.com>
---

 mm/vmscan.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/mm/vmscan.c~mm-mglru-make-swappiness=1-file-reclaim-more-aggressive
+++ a/mm/vmscan.c
@@ -4956,7 +4956,11 @@ static void lru_gen_balance_scan(struct
 	anon_weight = nr[LRU_GEN_ANON] + nr[LRU_GEN_FILE] / size_bias;
 	file_weight = nr[LRU_GEN_FILE] + nr[LRU_GEN_ANON] / size_bias;
 
-	anon_factor = (u64)swappiness * refault_rate[LRU_GEN_FILE] * anon_weight;
+	if (swappiness == MIN_SWAPPINESS + 1)
+		anon_factor = sc->priority <= DEF_PRIORITY / 2 ?
+			      refault_rate[LRU_GEN_FILE] * anon_weight : 0;
+	else
+		anon_factor = (u64)swappiness * refault_rate[LRU_GEN_FILE] * anon_weight;
 	if (swappiness == MAX_SWAPPINESS)
 		file_factor = sc->priority < DEF_PRIORITY / 2 ?
 			      refault_rate[LRU_GEN_ANON] * file_weight : 0;
_

Patches currently in -mm which might be from baohua@kernel.org are

arm64-vmalloc-allow-arch_vmap_pte_range_map_size-to-batch-multiple-cont_pte.patch
mm-vmalloc-extend-page-table-walk-to-support-larger-page_shift-sizes-and-eliminate-page-table-rewalk.patch
mm-vmalloc-map-contiguous-pages-in-batches-for-vmap-if-possible.patch
mm-vmalloc-align-vm_area-so-vmap-can-batch-mappings.patch

[to-be-updated] mm-mglru-make-swappiness=1-file-reclaim-more-aggressive.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/mglru: make swappiness=1 file reclaim more aggressive
has been removed from the -mm tree.  Its filename was
     mm-mglru-make-swappiness=1-file-reclaim-more-aggressive.patch

This patch was dropped because an updated version will be issued

------------------------------------------------------
From: "Barry Song (Xiaomi)" <baohua@kernel.org>
Subject: mm/mglru: make swappiness=1 file reclaim more aggressive
Date: Thu, 12 Nov 2026 07:26:02 +0800

In MGLRU, swappiness=200 favors anon reclaim, while swappiness=1
favors file reclaim. Swappiness=0 allows only file reclaim, while
swappiness=201 allows only anon reclaim. Thus, swappiness=1 and
swappiness=200 are counterparts for file and anon reclaim,
respectively.

Before this patchset, get_type_to_scan() always returned
LRU_GEN_ANON for swappiness=200 and LRU_GEN_FILE for swappiness=1.

For swappiness=200, file_factor is set to 0 at higher reclaim
priorities. Similarly, anon_factor is set to 0 for swappiness=1
at higher reclaim priorities, making the two settings behave
similarly, although the thresholds are slightly different.

This allows file pages to be reclaimed more aggressively and
benefits workloads that prioritize file reclaim by using
swappiness=1.

Link: https://lore.kernel.org/20261111232603.9934-16-baohua@kernel.org
Signed-off-by: Barry Song (Xiaomi) <baohua@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <hui.zhu@linux.dev>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kunwu Chan <kunwu.chan@gmail.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: wang lian <lianux.mm@gmail.com>
Cc: <liuxiang.277@bytedance.com>
Cc: <lyugaofei@xiaomi.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Qi Zheng <qi.zheng@linux.dev>
Cc: Ridong Chen <ridong.chen@linux.dev>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: wangzicheng <wangzicheng@honor.com>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Bo Zhang <zhangbo56@xiaomi.com>
Cc: Hui Zhu <zhuhui@kylinos.cn>
Cc: Siddharth Chintamaneni <sidchintamaneni@gmail.com>
---

 mm/vmscan.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/mm/vmscan.c~mm-mglru-make-swappiness=1-file-reclaim-more-aggressive
+++ a/mm/vmscan.c
@@ -4952,7 +4952,11 @@ static void lru_gen_balance_scan(struct
 	anon_weight = nr[LRU_GEN_ANON] + nr[LRU_GEN_FILE] / size_bias;
 	file_weight = nr[LRU_GEN_FILE] + nr[LRU_GEN_ANON] / size_bias;
 
-	anon_factor = (u64)swappiness * refault_rate[LRU_GEN_FILE] * anon_weight;
+	if (swappiness == MIN_SWAPPINESS + 1)
+		anon_factor = sc->priority <= DEF_PRIORITY / 2 ?
+			      refault_rate[LRU_GEN_FILE] * anon_weight : 0;
+	else
+		anon_factor = (u64)swappiness * refault_rate[LRU_GEN_FILE] * anon_weight;
 	if (swappiness == MAX_SWAPPINESS)
 		file_factor = sc->priority < DEF_PRIORITY / 2 ?
 			      refault_rate[LRU_GEN_ANON] * file_weight : 0;
_

Patches currently in -mm which might be from baohua@kernel.org are

arm64-vmalloc-allow-arch_vmap_pte_range_map_size-to-batch-multiple-cont_pte.patch
mm-vmalloc-extend-page-table-walk-to-support-larger-page_shift-sizes-and-eliminate-page-table-rewalk.patch
mm-vmalloc-map-contiguous-pages-in-batches-for-vmap-if-possible.patch
mm-vmalloc-align-vm_area-so-vmap-can-batch-mappings.patch