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...
This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------ 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); + } } }
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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