| Message ID | 20210318122722.13135-5-linmiaohe@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Some cleanups for huge_memory | expand |
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 23964adf5db2..52acc3954afd 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1291,7 +1291,7 @@ vm_fault_t do_huge_pmd_wp_page(struct vm_fault *vmf, pmd_t orig_pmd) } page = pmd_page(orig_pmd); - VM_BUG_ON_PAGE(!PageCompound(page) || !PageHead(page), page); + VM_BUG_ON_PAGE(!PageHead(page), page); /* Lock page for reuse_swap_page() */ if (!trylock_page(page)) {
The !PageCompound() check limits the page must be head or tail while !PageHead() further limits it to page head only. So !PageHead() check is equivalent here. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> --- mm/huge_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)