Messages in this thread Patch in this message | | | From | Miaohe Lin <> | Subject | [PATCH 3/5] mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled() | Date | Tue, 27 Apr 2021 21:32:12 +0800 |
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Since commit 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS"), read-only THP file mapping is supported. But it forgot to add checking for it in transparent_hugepage_enabled().
Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS") Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> --- mm/huge_memory.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 76ca1eb2a223..aa22a0ae9894 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -74,6 +74,9 @@ bool transparent_hugepage_enabled(struct vm_area_struct *vma) return __transparent_hugepage_enabled(vma); if (vma_is_shmem(vma)) return shmem_huge_enabled(vma); + if (IS_ENABLED(CONFIG_READ_ONLY_THP_FOR_FS) && vma->vm_file && + (vma->vm_flags & VM_DENYWRITE)) + return true; return false; } -- 2.23.0
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