mm/treewide: replace pXd_huge() with pXd_leaf()

Now after we're sure all pXd_huge() definitions are the same as pXd_leaf(),
reuse it. Luckily, pXd_huge() isn't widely used.

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Peter Xu <[e-mail]>
Cc: Alistair Popple <[e-mail]>
Cc: Andreas Larsson <[e-mail]>
Cc: "Aneesh Kumar K.V" <[e-mail]>
Cc: Arnd Bergmann <[e-mail]>
Cc: Bjorn Andersson <[e-mail]>
Cc: Borislav Petkov <[e-mail]>
Cc: Catalin Marinas <[e-mail]>
Cc: Christophe Leroy <[e-mail]>
Cc: Dave Hansen <[e-mail]>
Cc: David S. Miller <[e-mail]>
Cc: Fabio Estevam <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: Jason Gunthorpe <[e-mail]>
Cc: Konrad Dybcio <[e-mail]>
Cc: Krzysztof Kozlowski <[e-mail]>
Cc: Lucas Stach <[e-mail]>
Cc: Mark Salter <[e-mail]>
Cc: "Matthew Wilcox (Oracle)" <[e-mail]>
Cc: Michael Ellerman <[e-mail]>
Cc: Mike Rapoport (IBM) <[e-mail]>
Cc: Muchun Song <[e-mail]>
Cc: Naoya Horiguchi <[e-mail]>
Cc: "Naveen N. Rao" <[e-mail]>
Cc: Nicholas Piggin <[e-mail]>
Cc: Russell King <[e-mail]>
Cc: Shawn Guo <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: Will Deacon <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>

arch/arm/include/asm/pgtable-3level.h

···
 #define pmd_dirty(pmd)		(pmd_isset((pmd), L_PMD_SECT_DIRTY))
 
 #define pmd_hugewillfault(pmd)	(!pmd_young(pmd) || !pmd_write(pmd))
-#define pmd_thp_or_huge(pmd)	(pmd_huge(pmd) || pmd_trans_huge(pmd))
+#define pmd_thp_or_huge(pmd)	(pmd_leaf(pmd) || pmd_trans_huge(pmd))
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 #define pmd_trans_huge(pmd)	(pmd_val(pmd) && !pmd_table(pmd))

arch/arm64/include/asm/pgtable.h

···
 	return pmd;
 }
 
-#define pmd_thp_or_huge(pmd)	(pmd_huge(pmd) || pmd_trans_huge(pmd))
+#define pmd_thp_or_huge(pmd)	(pmd_leaf(pmd) || pmd_trans_huge(pmd))
 
 #define pmd_write(pmd)		pte_write(pmd_pte(pmd))
 

arch/arm64/mm/hugetlbpage.c

···
 	if (sz != PUD_SIZE && pud_none(pud))
 		return NULL;
 	/* hugepage or swap? */
-	if (pud_huge(pud) || !pud_present(pud))
+	if (pud_leaf(pud) || !pud_present(pud))
 		return (pte_t *)pudp;
 	/* table; check the next level */
 
···
 	if (!(sz == PMD_SIZE || sz == CONT_PMD_SIZE) &&
 	    pmd_none(pmd))
 		return NULL;
-	if (pmd_huge(pmd) || !pmd_present(pmd))
+	if (pmd_leaf(pmd) || !pmd_present(pmd))
 		return (pte_t *)pmdp;
 
 	if (sz == CONT_PTE_SIZE)

arch/loongarch/mm/hugetlbpage.c

···
 {
 	uint64_t val;
 	/* PMD as PTE. Must be huge page */
-	if (!pmd_huge(__pmd(pmd_val)))
+	if (!pmd_leaf(__pmd(pmd_val)))
 		panic("%s", __func__);
 
 	val = pmd_val ^ _PAGE_HUGE;

arch/mips/mm/tlb-r4k.c

···
 	idx = read_c0_index();
 #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
 	/* this could be a huge page  */
-	if (pmd_huge(*pmdp)) {
+	if (pmd_leaf(*pmdp)) {
 		unsigned long lo;
 		write_c0_pagemask(PM_HUGE_MASK);
 		ptep = (pte_t *)pmdp;

arch/powerpc/mm/pgtable_64.c

···
 {
 	if (p4d_leaf(p4d)) {
 		if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
-			VM_WARN_ON(!p4d_huge(p4d));
+			VM_WARN_ON(!p4d_leaf(p4d));
 		return pte_page(p4d_pte(p4d));
 	}
 	return virt_to_page(p4d_pgtable(p4d));
···
 {
 	if (pud_leaf(pud)) {
 		if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
-			VM_WARN_ON(!pud_huge(pud));
+			VM_WARN_ON(!pud_leaf(pud));
 		return pte_page(pud_pte(pud));
 	}
 	return virt_to_page(pud_pgtable(pud));
···
 		 * enabled so these checks can't be used.
 		 */
 		if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
-			VM_WARN_ON(!(pmd_leaf(pmd) || pmd_huge(pmd)));
+			VM_WARN_ON(!pmd_leaf(pmd));
 		return pte_page(pmd_pte(pmd));
 	}
 	return virt_to_page(pmd_page_vaddr(pmd));

arch/x86/mm/pgtable.c

···
 		return 0;
 
 	/* Bail out if we are we on a populated non-leaf entry: */
-	if (pud_present(*pud) && !pud_huge(*pud))
+	if (pud_present(*pud) && !pud_leaf(*pud))
 		return 0;
 
 	set_pte((pte_t *)pud, pfn_pte(
···
 	}
 
 	/* Bail out if we are we on a populated non-leaf entry: */
-	if (pmd_present(*pmd) && !pmd_huge(*pmd))
+	if (pmd_present(*pmd) && !pmd_leaf(*pmd))
 		return 0;
 
 	set_pte((pte_t *)pmd, pfn_pte(

mm/gup.c

···
 	p4d = READ_ONCE(*p4dp);
 	if (!p4d_present(p4d))
 		return no_page_table(vma, flags);
-	BUILD_BUG_ON(p4d_huge(p4d));
+	BUILD_BUG_ON(p4d_leaf(p4d));
 	if (unlikely(p4d_bad(p4d)))
 		return no_page_table(vma, flags);
 
···
 		next = p4d_addr_end(addr, end);
 		if (!p4d_present(p4d))
 			return 0;
-		BUILD_BUG_ON(p4d_huge(p4d));
+		BUILD_BUG_ON(p4d_leaf(p4d));
 		if (unlikely(is_hugepd(__hugepd(p4d_val(p4d))))) {
 			if (!gup_huge_pd(__hugepd(p4d_val(p4d)), addr,
 					 P4D_SHIFT, next, flags, pages, nr))

mm/hmm.c

···
 		return hmm_vma_walk_hole(start, end, -1, walk);
 	}
 
-	if (pud_huge(pud) && pud_devmap(pud)) {
+	if (pud_leaf(pud) && pud_devmap(pud)) {
 		unsigned long i, npages, pfn;
 		unsigned int required_fault;
 		unsigned long *hmm_pfns;

mm/memory.c

···
 	unsigned long next;
 	int err = 0;
 
-	BUG_ON(pud_huge(*pud));
+	BUG_ON(pud_leaf(*pud));
 
 	if (create) {
 		pmd = pmd_alloc_track(mm, pud, addr, mask);