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mm/swapfile: use plist_for_each_entry in __folio_throttle_swaprate 

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>
Acked-by: Kairui Song <kasong@tencent.com>
Acked-by: Chris Li <chrisl@kernel.org>
Cc: Barry Song <baohua@kernel.org>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Nhat Pham <nphamcs@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Youngjun Park 2025-11-27 19:03:03 +09:00 committed by Andrew Morton
parent f9e82f99b3
commit b60a3ef784
1 changed files with 2 additions and 3 deletions
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5
mm/swapfile.c
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@ -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 folio *folio, gfp_t gfp)
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;