mm: Introduce vmap_page_range() to map pages in PCI address space

[linux-2.6-microblaze.git] / mm / vmalloc.c

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index e5b8c70..1e36322 100644 (file)
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -304,11 +304,24 @@ static int vmap_range_noflush(unsigned long addr, unsigned long end,
        return err;
 }
 
+int vmap_page_range(unsigned long addr, unsigned long end,
+                   phys_addr_t phys_addr, pgprot_t prot)
+{
+       int err;
+
+       err = vmap_range_noflush(addr, end, phys_addr, pgprot_nx(prot),
+                                ioremap_max_page_shift);
+       flush_cache_vmap(addr, end);
+       if (!err)
+               err = kmsan_ioremap_page_range(addr, end, phys_addr, prot,
+                                              ioremap_max_page_shift);
+       return err;
+}
+
 int ioremap_page_range(unsigned long addr, unsigned long end,
                phys_addr_t phys_addr, pgprot_t prot)
 {
        struct vm_struct *area;
-       int err;
 
        area = find_vm_area((void *)addr);
        if (!area || !(area->flags & VM_IOREMAP)) {
@@ -322,13 +335,7 @@ int ioremap_page_range(unsigned long addr, unsigned long end,
                          (long)area->addr + get_vm_area_size(area));
                return -ERANGE;
        }
-       err = vmap_range_noflush(addr, end, phys_addr, pgprot_nx(prot),
-                                ioremap_max_page_shift);
-       flush_cache_vmap(addr, end);
-       if (!err)
-               err = kmsan_ioremap_page_range(addr, end, phys_addr, prot,
-                                              ioremap_max_page_shift);
-       return err;
+       return vmap_page_range(addr, end, phys_addr, prot);
 }
 
 static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,