[PATCH v2 3/5] x86: pgtable: Drop pXd_none() checks from pXd_free_pYd_table()

[Will Deacon]

Now that the core code checks this for us, we don't need to do it in the
backend.

Cc: Chintan Pandya <cpandya@xxxxxxxxxxxxxx>
Cc: Toshi Kani <toshi.kani@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Toshi Kani <toshi.kani@xxxxxxx>
Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
---
 arch/x86/mm/pgtable.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index ae394552fb94..b4919c44a194 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -796,9 +796,6 @@ int pud_free_pmd_page(pud_t *pud, unsigned long addr)
 	pte_t *pte;
 	int i;
 
-	if (pud_none(*pud))
-		return 1;
-
 	pmd = (pmd_t *)pud_page_vaddr(*pud);
 	pmd_sv = (pmd_t *)__get_free_page(GFP_KERNEL);
 	if (!pmd_sv)
@@ -840,9 +837,6 @@ int pmd_free_pte_page(pmd_t *pmd, unsigned long addr)
 {
 	pte_t *pte;
 
-	if (pmd_none(*pmd))
-		return 1;
-
 	pte = (pte_t *)pmd_page_vaddr(*pmd);
 	pmd_clear(pmd);
 
-- 
2.1.4