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| author | Miaohe Lin <linmiaohe@huawei.com> | 2024-09-14 09:53:06 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-09-17 00:58:04 -0700 |
| commit | 2a1b8648d9be9f37f808a36c0f74adb8c53d06e6 (patch) | |
| tree | df0c200adf21996de5bb1d71e5d31eb48245c92d /mm/huge_memory.c | |
| parent | 98b74bb4d7e96b4da5ef3126511febe55b76b807 (diff) | |
| download | linux-2a1b8648d9be9f37f808a36c0f74adb8c53d06e6.tar.gz linux-2a1b8648d9be9f37f808a36c0f74adb8c53d06e6.tar.bz2 linux-2a1b8648d9be9f37f808a36c0f74adb8c53d06e6.zip | |
mm/huge_memory: ensure huge_zero_folio won't have large_rmappable flag set
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>
Diffstat (limited to 'mm/huge_memory.c')
| -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 67c86a5d64a6..99b146d16a18 100644 --- a/mm/huge_memory.c +++ b/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(); |