[merged mm-stable] fs-stable_page_flags-simplify-kpf_idle-handling.patch removed from -mm tree

[Andrew Morton <akpm@linux-foundation.org>]

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The quilt patch titled
     Subject: fs: stable_page_flags(): simplify KPF_IDLE handling
has been removed from the -mm tree.  Its filename was
     fs-stable_page_flags-simplify-kpf_idle-handling.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Jinjiang Tu <tujinjiang@huawei.com>
Subject: fs: stable_page_flags(): simplify KPF_IDLE handling
Date: Mon, 20 Jul 2026 11:30:21 +0800

For KPF_IDLE, folio_test_idle() check in set_ps_flags() already handles
all config cases, so remove the duplicate code in stable_page_flags() that
deals with CONFIG_PAGE_IDLE_FLAG for the 64‑bit case.

No functional change is intended.

Link: https://lore.kernel.org/20260720033021.4091944-4-tujinjiang@huawei.com
Signed-off-by: Jinjiang Tu <tujinjiang@huawei.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Luiz Capitulino <luizcap@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Svetly Todorov <svetly.todorov@memverge.com>
Cc: xu xin <xu.xin16@zte.com.cn>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/proc/page.c |   10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

--- a/fs/proc/page.c~fs-stable_page_flags-simplify-kpf_idle-handling
+++ a/fs/proc/page.c
@@ -196,6 +196,9 @@ u64 stable_page_flags(const struct page
 	if (ps.flags & PAGE_SNAPSHOT_PG_BUDDY)
 		u |= BIT_ULL(KPF_BUDDY);
 
+	if (ps.flags & PAGE_SNAPSHOT_PG_IDLE)
+		u |= BIT_ULL(KPF_IDLE);
+
 	if (folio_test_offline(folio))
 		u |= BIT_ULL(KPF_OFFLINE);
 	if (folio_test_pgtable(folio))
@@ -203,13 +206,6 @@ u64 stable_page_flags(const struct page
 	if (folio_test_slab(folio))
 		u |= BIT_ULL(KPF_SLAB);
 
-#if defined(CONFIG_PAGE_IDLE_FLAG) && defined(CONFIG_64BIT)
-	u |= kpf_copy_bit(k, KPF_IDLE,          PG_idle);
-#else
-	if (ps.flags & PAGE_SNAPSHOT_PG_IDLE)
-		u |= BIT_ULL(KPF_IDLE);
-#endif
-
 	u |= kpf_copy_bit(k, KPF_LOCKED,	PG_locked);
 	u |= kpf_copy_bit(k, KPF_DIRTY,		PG_dirty);
 	u |= kpf_copy_bit(k, KPF_UPTODATE,	PG_uptodate);
_

Patches currently in -mm which might be from tujinjiang@huawei.com are