* + mm-fix-for-negative-counter-nr_file_hugepages-v3.patch added to mm-hotfixes-unstable branch
@ 2023-11-08 21:38 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2023-11-08 21:38 UTC (permalink / raw)
To: mm-commits, willy, stable, riel, hannes, shr, akpm
The patch titled
Subject: mm-fix-for-negative-counter-nr_file_hugepages-v3
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
mm-fix-for-negative-counter-nr_file_hugepages-v3.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-fix-for-negative-counter-nr_file_hugepages-v3.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Stefan Roesch <shr@devkernel.io>
Subject: mm-fix-for-negative-counter-nr_file_hugepages-v3
Date: Wed, 8 Nov 2023 09:15:17 -0800
test for folio_test_pmd_mappable()
Link: https://lkml.kernel.org/r/20231108171517.2436103-1-shr@devkernel.io
Signed-off-by: Stefan Roesch <shr@devkernel.io>
Co-debugged-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/huge_memory.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
--- a/mm/huge_memory.c~mm-fix-for-negative-counter-nr_file_hugepages-v3
+++ a/mm/huge_memory.c
@@ -2769,13 +2769,15 @@ int split_huge_page_to_list(struct page
int nr = folio_nr_pages(folio);
xas_split(&xas, folio, folio_order(folio));
- if (folio_test_swapbacked(folio)) {
- __lruvec_stat_mod_folio(folio, NR_SHMEM_THPS,
- -nr);
- } else if (folio_test_pmd_mappable(folio)) {
- __lruvec_stat_mod_folio(folio, NR_FILE_THPS,
- -nr);
- filemap_nr_thps_dec(mapping);
+ if (folio_test_pmd_mappable(folio)) {
+ if (folio_test_swapbacked(folio)) {
+ __lruvec_stat_mod_folio(folio,
+ NR_SHMEM_THPS, -nr);
+ } else {
+ __lruvec_stat_mod_folio(folio,
+ NR_FILE_THPS, -nr);
+ filemap_nr_thps_dec(mapping);
+ }
}
}
_
Patches currently in -mm which might be from shr@devkernel.io are
mm-fix-for-negative-counter-nr_file_hugepages.patch
mm-fix-for-negative-counter-nr_file_hugepages-v3.patch
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2023-11-08 21:38 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-11-08 21:38 + mm-fix-for-negative-counter-nr_file_hugepages-v3.patch added to mm-hotfixes-unstable branch Andrew Morton
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).