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/20240318200404.448346-12-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Mark Salter <msalter@redhat.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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

@@ -190,7 +190,7 @@ static inline pte_t pte_mkspecial(pte_t pte)
 #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

@@ -517,7 +517,7 @@ static inline pmd_t pmd_mkinvalid(pmd_t pmd)
 	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

@@ -321,7 +321,7 @@ pte_t *huge_pte_offset(struct mm_struct *mm,
 	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 */
 
@@ -333,7 +333,7 @@ pte_t *huge_pte_offset(struct mm_struct *mm,
 	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

@@ -64,7 +64,7 @@ uint64_t pmd_to_entrylo(unsigned long pmd_val)
 {
 	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

@@ -326,7 +326,7 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte)
 	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

@@ -102,7 +102,7 @@ struct page *p4d_page(p4d_t p4d)
 {
 	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));
@@ -113,7 +113,7 @@ struct page *pud_page(pud_t pud)
 {
 	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));
@@ -132,7 +132,7 @@ struct page *pmd_page(pmd_t pmd)
 		 * 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

@@ -731,7 +731,7 @@ int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot)
 		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(
@@ -760,7 +760,7 @@ int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot)
 	}
 
 	/* 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

@@ -778,7 +778,7 @@ static struct page *follow_p4d_mask(struct vm_area_struct *vma,
 	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);
 
@@ -3082,7 +3082,7 @@ static int gup_p4d_range(pgd_t *pgdp, pgd_t pgd, unsigned long addr, unsigned lo
 		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

@@ -429,7 +429,7 @@ static int hmm_vma_walk_pud(pud_t *pudp, unsigned long start, unsigned long end,
 		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

@@ -2765,7 +2765,7 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud,
 	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);