+ mm-swapfile-use-plist_for_each_entry-in-__folio_throttle_swaprate.patch added to mm-unstable branch

+ mm-swapfile-use-plist_for_each_entry-in-__folio_throttle_swaprate.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/swapfile: use plist_for_each_entry in __folio_throttle_swaprate
has been added to the -mm mm-unstable branch.  Its filename is
     mm-swapfile-use-plist_for_each_entry-in-__folio_throttle_swaprate.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-swapfile-use-plist_for_each_entry-in-__folio_throttle_swaprate.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Youngjun Park <youngjun.park@lge.com>
Subject: mm/swapfile: use plist_for_each_entry in __folio_throttle_swaprate
Date: Thu, 27 Nov 2025 19:03:03 +0900

The loop breaks immediately after finding the first swap device and
never modifies the list. Replace plist_for_each_entry_safe() with
plist_for_each_entry() and remove the unused next variable.

Link: https://lkml.kernel.org/r/20251127100303.783198-3-youngjun.park@lge.com
Signed-off-by: Youngjun Park <youngjun.park@lge.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Nhat Pham <nphamcs@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/swapfile.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

--- a/mm/swapfile.c~mm-swapfile-use-plist_for_each_entry-in-__folio_throttle_swaprate
+++ a/mm/swapfile.c
@@ -4023,7 +4023,7 @@ static bool __has_usable_swap(void)
 
 void __folio_throttle_swaprate(struct folio *folio, gfp_t gfp)
 {
-	struct swap_info_struct *si, *next;
+	struct swap_info_struct *si;
 
 	if (!(gfp & __GFP_IO))
 		return;
@@ -4042,8 +4042,7 @@ void __folio_throttle_swaprate(struct fo
 		return;
 
 	spin_lock(&swap_avail_lock);
-	plist_for_each_entry_safe(si, next, &swap_avail_head,
-				  avail_list) {
+	plist_for_each_entry(si, &swap_avail_head, avail_list) {
 		if (si->bdev) {
 			blkcg_schedule_throttle(si->bdev->bd_disk, true);
 			break;
_

Patches currently in -mm which might be from youngjun.park@lge.com are

mm-swapfile-fix-list-iteration-when-next-node-is-removed-during-discard.patch
mm-swapfile-use-plist_for_each_entry-in-__folio_throttle_swaprate.patch