The patch titled
Subject: mm-swap-allow-cache-reclaim-to-skip-slot-cache-fix
has been added to the -mm mm-unstable branch. Its filename is
mm-swap-allow-cache-reclaim-to-skip-slot-cache-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-swap-allow-cache-reclaim-to-skip-slot-cache-fix.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: Barry Song <21cnbao@xxxxxxxxx>
Subject: mm-swap-allow-cache-reclaim-to-skip-slot-cache-fix
Date: Mon, 5 Aug 2024 13:53:24 +1200
small folios should have nr_pages == 1 but not nr_page == 0
Link: https://lkml.kernel.org/r/20240805015324.45134-1-21cnbao@xxxxxxxxx
Signed-off-by: Barry Song <21cnbao@xxxxxxxxx>
Cc: Chris Li <chrisl@xxxxxxxxxx>
Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Kairui Song <ryncsn@xxxxxxxxx>
Cc: Kalesh Singh <kaleshsingh@xxxxxxxxxx>
Cc: Ryan Roberts <ryan.roberts@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/swapfile.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/swapfile.c~mm-swap-allow-cache-reclaim-to-skip-slot-cache-fix
+++ a/mm/swapfile.c
@@ -224,7 +224,7 @@ static int __try_to_reclaim_swap(struct
spin_lock(&si->lock);
/* Only sinple page folio can be backed by zswap */
- if (!nr_pages)
+ if (nr_pages == 1)
zswap_invalidate(entry);
swap_entry_range_free(si, entry, nr_pages);
spin_unlock(&si->lock);
_
Patches currently in -mm which might be from 21cnbao@xxxxxxxxx are
mm-swap-allow-cache-reclaim-to-skip-slot-cache-fix.patch
