diff mbox series

[4/6] mm/huge_memory.c: remove redundant PageCompound() check

Message ID 20210313103225.16607-6-linmiaohe@huawei.com (mailing list archive)
State New, archived
Headers show
Series Some cleanups for huge_memory | expand

Commit Message

Miaohe Lin March 13, 2021, 10:32 a.m. UTC 
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(-)
diff mbox series

Patch

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 26f91bf15613..c00205e7c548 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)) {