diff options
| author | Miaohe Lin <linmiaohe@huawei.com> | 2024-09-14 09:53:06 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-10-04 16:33:48 +0200 |
| commit | 721aa7c9984e05b3bbff53fc4c914e395a24ded2 (patch) | |
| tree | 13490eed446fb3853e70440325fe5625285efd37 | |
| parent | e897d184a8dd4a4e1f39c8c495598e4d9472776c (diff) | |
mm/huge_memory: ensure huge_zero_folio won't have large_rmappable flag set
commit 2a1b8648d9be9f37f808a36c0f74adb8c53d06e6 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | mm/huge_memory.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 4d9c1277e5e4..cedc93028894 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -214,6 +214,8 @@ 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(); |