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

+ mm-swapfile-use-plist_for_each_entry-in-__folio_throttle_swaprate.patch added to mm-new 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-new 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-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

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------------------------------------------------------
From: Youngjun Park <youngjun.park@lge.com>
Subject: mm/swapfile: use plist_for_each_entry in __folio_throttle_swaprate
Date: Wed, 26 Nov 2025 01:30:27 +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/20251125163027.4165450-3-youngjun.park@lge.com
Signed-off-by: Youngjun Park <youngjun.park@lge.com>
Cc: 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-in-swap_sync_discard.patch
mm-swapfile-use-plist_for_each_entry-in-__folio_throttle_swaprate.patch