The patch titled Subject: mm/huge_memory: ensure huge_zero_folio won't have large_rmappable flag set has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-huge_memory-ensure-huge_zero_folio-wont-have-large_rmappable-flag-set.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: Miaohe Lin linmiaohe@huawei.com Subject: mm/huge_memory: ensure huge_zero_folio won't have large_rmappable flag set Date: Sat, 14 Sep 2024 09:53:06 +0800
Ensure huge_zero_folio won't have large_rmappable flag set. So it can be reported as thp,zero correctly through stable_page_flags().
Link: https://lkml.kernel.org/r/20240914015306.3656791-1-linmiaohe@huawei.com Fixes: 5691753d73a2 ("mm: convert huge_zero_page to huge_zero_folio") Signed-off-by: Miaohe Lin linmiaohe@huawei.com Cc: David Hildenbrand david@redhat.com Cc: Matthew Wilcox (Oracle) willy@infradead.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
mm/huge_memory.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/mm/huge_memory.c~mm-huge_memory-ensure-huge_zero_folio-wont-have-large_rmappable-flag-set +++ a/mm/huge_memory.c @@ -220,6 +220,8 @@ retry: count_vm_event(THP_ZERO_PAGE_ALLOC_FAILED); return false; } + /* Ensure zero folio won't have large_rmappable flag set. */ + folio_clear_large_rmappable(zero_folio); preempt_disable(); if (cmpxchg(&huge_zero_folio, NULL, zero_folio)) { preempt_enable(); _
Patches currently in -mm which might be from linmiaohe@huawei.com are
mm-huge_memory-ensure-huge_zero_folio-wont-have-large_rmappable-flag-set.patch mm-memory-failure-fix-vm_bug_on_pagepagepoisonedpage-when-unpoison-memory.patch