diff options
Diffstat (limited to 'drivers/xen/gntdev.c')
| -rw-r--r-- | drivers/xen/gntdev.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 3c8803feba2..073b4a19a8b 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -19,6 +19,8 @@ #undef DEBUG +#define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -270,19 +272,12 @@ static int map_grant_pages(struct grant_map *map) * with find_grant_ptes. */ for (i = 0; i < map->count; i++) { - unsigned level; unsigned long address = (unsigned long) pfn_to_kaddr(page_to_pfn(map->pages[i])); - pte_t *ptep; - u64 pte_maddr = 0; BUG_ON(PageHighMem(map->pages[i])); - ptep = lookup_address(address, &level); - pte_maddr = arbitrary_virt_to_machine(ptep).maddr; - gnttab_set_map_op(&map->kmap_ops[i], pte_maddr, - map->flags | - GNTMAP_host_map | - GNTMAP_contains_pte, + gnttab_set_map_op(&map->kmap_ops[i], address, + map->flags | GNTMAP_host_map, map->grants[i].ref, map->grants[i].domid); } @@ -760,7 +755,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) if (use_ptemod && map->vma) goto unlock_out; if (use_ptemod && priv->mm != vma->vm_mm) { - printk(KERN_WARNING "Huh? Other mm?\n"); + pr_warn("Huh? Other mm?\n"); goto unlock_out; } @@ -795,7 +790,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) vma->vm_end - vma->vm_start, find_grant_ptes, map); if (err) { - printk(KERN_WARNING "find_grant_ptes() failure.\n"); + pr_warn("find_grant_ptes() failure.\n"); goto out_put_map; } } @@ -851,11 +846,11 @@ static int __init gntdev_init(void) if (!xen_domain()) return -ENODEV; - use_ptemod = xen_pv_domain(); + use_ptemod = !xen_feature(XENFEAT_auto_translated_physmap); err = misc_register(&gntdev_miscdev); if (err != 0) { - printk(KERN_ERR "Could not register gntdev device\n"); + pr_err("Could not register gntdev device\n"); return err; } return 0; |