+ mm-rmap-abstract-updating-per-node-and-per-memcg-stats-fix.patch added to mm-unstable branch

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The patch titled
     Subject: mm: rmap: abstract updating per-node and per-memcg stats fix
has been added to the -mm mm-unstable branch.  Its filename is
     mm-rmap-abstract-updating-per-node-and-per-memcg-stats-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-rmap-abstract-updating-per-node-and-per-memcg-stats-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: Hugh Dickins <hughd@xxxxxxxxxx>
Subject: mm: rmap: abstract updating per-node and per-memcg stats fix
Date: Tue, 11 Jun 2024 22:10:43 -0700 (PDT)

/proc/meminfo is showing ridiculously large numbers on some lines:
__folio_remove_rmap()'s __folio_mod_stat() should be subtracting!

Link: https://lkml.kernel.org/r/49914517-dfc7-e784-fde0-0e08fafbecc2@xxxxxxxxxx
Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
Reviewed-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/rmap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/rmap.c~mm-rmap-abstract-updating-per-node-and-per-memcg-stats-fix
+++ a/mm/rmap.c
@@ -1567,7 +1567,7 @@ static __always_inline void __folio_remo
 		    list_empty(&folio->_deferred_list))
 			deferred_split_folio(folio);
 	}
-	__folio_mod_stat(folio, nr, nr_pmdmapped);
+	__folio_mod_stat(folio, -nr, -nr_pmdmapped);
 
 	/*
 	 * It would be tidy to reset folio_test_anon mapping when fully
_

Patches currently in -mm which might be from hughd@xxxxxxxxxx are

mm-migrate-fix-kernel-bug-at-mm-compactionc-2761.patch
mm-rmap-abstract-updating-per-node-and-per-memcg-stats-fix.patch





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