VM: add "vm_mmap()" helper function

[linux-flexiantxendom0-3.2.10.git] / drivers / gpu / drm / i915 / i915_gem.c

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0e3c6ac..0d1e4b7 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1087,11 +1087,9 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
        if (obj == NULL)
                return -ENOENT;
 
-       down_write(&current->mm->mmap_sem);
-       addr = do_mmap(obj->filp, 0, args->size,
+       addr = vm_mmap(obj->filp, 0, args->size,
                       PROT_READ | PROT_WRITE, MAP_SHARED,
                       args->offset);
-       up_write(&current->mm->mmap_sem);
        drm_gem_object_unreference_unlocked(obj);
        if (IS_ERR((void *)addr))
                return addr;