mm/vmalloc: rename vmap_*_range vmap_pages_*_range

ascend inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4EUVI
CVE: NA

https://lwn.net/ml/linux-kernel/20200825145753.529284-4-npiggin@gmail.com/
--------------

The vmalloc mapper operates on a struct page * array rather than a
linear physical address, re-name it to make this distinction clear.
Signed-off-by: NNicholas Piggin <npiggin@gmail.com>
Signed-off-by: NRui Xiang <rui.xiang@huawei.com>
Reviewed-by: NDing Tianhong <dingtianhong@huawei.com>
Reviewed-by: NZefan Li <lizefan@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

mm/vmalloc.c

@@ -148,7 +148,7 @@ void unmap_kernel_range_noflush(unsigned long addr, unsigned long size)
 	} while (pgd++, addr = next, addr != end);
 }
 
-static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
+static int vmap_pages_pte_range(pmd_t *pmd, unsigned long addr,
 		unsigned long end, pgprot_t prot, struct page **pages, int *nr)
 {
 	pte_t *pte;
@@ -174,7 +174,7 @@ static int vmap_pte_range(pmd_t *pmd, unsigned long addr,
 	return 0;
 }
 
-static int vmap_pmd_range(pud_t *pud, unsigned long addr,
+static int vmap_pages_pmd_range(pud_t *pud, unsigned long addr,
 		unsigned long end, pgprot_t prot, struct page **pages, int *nr)
 {
 	pmd_t *pmd;
@@ -185,13 +185,13 @@ static int vmap_pmd_range(pud_t *pud, unsigned long addr,
 		return -ENOMEM;
 	do {
 		next = pmd_addr_end(addr, end);
-		if (vmap_pte_range(pmd, addr, next, prot, pages, nr))
+		if (vmap_pages_pte_range(pmd, addr, next, prot, pages, nr))
 			return -ENOMEM;
 	} while (pmd++, addr = next, addr != end);
 	return 0;
 }
 
-static int vmap_pud_range(p4d_t *p4d, unsigned long addr,
+static int vmap_pages_pud_range(p4d_t *p4d, unsigned long addr,
 		unsigned long end, pgprot_t prot, struct page **pages, int *nr)
 {
 	pud_t *pud;
@@ -202,13 +202,13 @@ static int vmap_pud_range(p4d_t *p4d, unsigned long addr,
 		return -ENOMEM;
 	do {
 		next = pud_addr_end(addr, end);
-		if (vmap_pmd_range(pud, addr, next, prot, pages, nr))
+		if (vmap_pages_pmd_range(pud, addr, next, prot, pages, nr))
 			return -ENOMEM;
 	} while (pud++, addr = next, addr != end);
 	return 0;
 }
 
-static int vmap_p4d_range(pgd_t *pgd, unsigned long addr,
+static int vmap_pages_p4d_range(pgd_t *pgd, unsigned long addr,
 		unsigned long end, pgprot_t prot, struct page **pages, int *nr)
 {
 	p4d_t *p4d;
@@ -219,7 +219,7 @@ static int vmap_p4d_range(pgd_t *pgd, unsigned long addr,
 		return -ENOMEM;
 	do {
 		next = p4d_addr_end(addr, end);
-		if (vmap_pud_range(p4d, addr, next, prot, pages, nr))
+		if (vmap_pages_pud_range(p4d, addr, next, prot, pages, nr))
 			return -ENOMEM;
 	} while (p4d++, addr = next, addr != end);
 	return 0;
@@ -256,7 +256,7 @@ int map_kernel_range_noflush(unsigned long addr, unsigned long size,
 	pgd = pgd_offset_k(addr);
 	do {
 		next = pgd_addr_end(addr, end);
-		err = vmap_p4d_range(pgd, addr, next, prot, pages, &nr);
+		err = vmap_pages_p4d_range(pgd, addr, next, prot, pages, &nr);
 		if (err)
 			return err;
 	} while (pgd++, addr = next, addr != end);