From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Fri, 7 Dec 2018 00:15:13 +0530 From: Souptick Joarder Subject: [PATCH v3 8/9] xen/gntdev.c: Convert to use vm_insert_range Message-ID: <20181206184513.GA32415@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, boris.ostrovsky@oracle.com, jgross@suse.com Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: Convert to use vm_insert_range() to map range of kernel memory to user vma. Signed-off-by: Souptick Joarder Reviewed-by: Matthew Wilcox Reviewed-by: Boris Ostrovsky --- drivers/xen/gntdev.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index b0b02a5..430d4cb 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -1084,7 +1084,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) int index = vma->vm_pgoff; int count = vma_pages(vma); struct gntdev_grant_map *map; - int i, err = -EINVAL; + int err = -EINVAL; if ((vma->vm_flags & VM_WRITE) && !(vma->vm_flags & VM_SHARED)) return -EINVAL; @@ -1145,12 +1145,9 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) goto out_put_map; if (!use_ptemod) { - for (i = 0; i < count; i++) { - err = vm_insert_page(vma, vma->vm_start + i*PAGE_SIZE, - map->pages[i]); - if (err) - goto out_put_map; - } + err = vm_insert_range(vma, vma->vm_start, map->pages, count); + if (err) + goto out_put_map; } else { #ifdef CONFIG_X86 /* -- 1.9.1