lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <49914517-dfc7-e784-fde0-0e08fafbecc2@google.com>
Date: Tue, 11 Jun 2024 22:10:43 -0700 (PDT)
From: Hugh Dickins <hughd@...gle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
cc: Yosry Ahmed <yosryahmed@...gle.com>, David Hildenbrand <david@...hat.com>, 
    linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: [PATCH unstable] mm: rmap: abstract updating per-node and per-memcg
 stats fix

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

Signed-off-by: Hugh Dickins <hughd@...gle.com>
---
A fix for folding into mm-unstable, not needed for 6.10-rc.

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

--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1567,7 +1567,7 @@ static __always_inline void __folio_remove_rmap(struct folio *folio,
 		    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
-- 
2.35.3


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ