drm: convert drawable code to using idr

This converts the code for allocating drawables to the Linux idr,

Fixes from: Michel Dänzer <michel@tungstengraphics.com>, Kristian Høgsberg <krh@redhat.com>

Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index b1cafe36611e..0df87fc3dcb2 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -751,10 +751,7 @@ struct drm_device {
         /** \name Drawable information */
         /*@{ */
         spinlock_t drw_lock;
-        unsigned int drw_bitfield_length;
-        u32 *drw_bitfield;
-        unsigned int drw_info_length;
-        struct drm_drawable_info **drw_info;
+        struct idr drw_idr;
         /*@} */
 };
 
@@ -904,6 +901,7 @@ extern int drm_update_drawable_info(struct inode *inode, struct file *filp,
                        unsigned int cmd, unsigned long arg);
 extern struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev,
                                                   drm_drawable_t id);
+extern void drm_drawable_free_all(struct drm_device *dev);
 
                                 /* Authentication IOCTL support (drm_auth.h) */
 extern int drm_getmagic(struct inode *inode, struct file *filp,