21 files changed, 89 insertions, 140 deletions

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index ff2f1042cb44..766c46875a20 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -434,11 +434,11 @@ static int drm_version(struct drm_device *dev, void *data,
  * Looks up the ioctl function in the ::ioctls table, checking for root
  * previleges if so required, and dispatches to the respective function.
  */
-int drm_ioctl(struct inode *inode, struct file *filp,
+long drm_ioctl(struct file *filp,
               unsigned int cmd, unsigned long arg)
 {
         struct drm_file *file_priv = filp->private_data;
-        struct drm_device *dev = file_priv->minor->dev;
+        struct drm_device *dev;
         struct drm_ioctl_desc *ioctl;
         drm_ioctl_t *func;
         unsigned int nr = DRM_IOCTL_NR(cmd);
@@ -446,6 +446,7 @@ int drm_ioctl(struct inode *inode, struct file *filp,
         char stack_kdata[128];
         char *kdata = NULL;
 
+        dev = file_priv->minor->dev;
         atomic_inc(&dev->ioctl_count);
         atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
         ++file_priv->ioctl_count;
@@ -501,7 +502,13 @@ int drm_ioctl(struct inode *inode, struct file *filp,
                                 goto err_i1;
                         }
                 }
-                retcode = func(dev, kdata, file_priv);
+                if (ioctl->flags & DRM_UNLOCKED)
+                        retcode = func(dev, kdata, file_priv);
+                else {
+                        lock_kernel();
+                        retcode = func(dev, kdata, file_priv);
+                        unlock_kernel();
+                }
 
                 if (cmd & IOC_OUT) {
                         if (copy_to_user((void __user *)arg, kdata,
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 282d9fdf9f4e..d61d185cf040 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -104,7 +104,7 @@ static int compat_drm_version(struct file *file, unsigned int cmd,
                           &version->desc))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
+        err = drm_ioctl(file,
                         DRM_IOCTL_VERSION, (unsigned long)version);
         if (err)
                 return err;
@@ -145,8 +145,7 @@ static int compat_drm_getunique(struct file *file, unsigned int cmd,
                           &u->unique))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_GET_UNIQUE, (unsigned long)u);
+        err = drm_ioctl(file, DRM_IOCTL_GET_UNIQUE, (unsigned long)u);
         if (err)
                 return err;
 
@@ -174,8 +173,7 @@ static int compat_drm_setunique(struct file *file, unsigned int cmd,
                           &u->unique))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_SET_UNIQUE, (unsigned long)u);
+        return drm_ioctl(file, DRM_IOCTL_SET_UNIQUE, (unsigned long)u);
 }
 
 typedef struct drm_map32 {
@@ -205,8 +203,7 @@ static int compat_drm_getmap(struct file *file, unsigned int cmd,
         if (__put_user(idx, &map->offset))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_GET_MAP, (unsigned long)map);
+        err = drm_ioctl(file, DRM_IOCTL_GET_MAP, (unsigned long)map);
         if (err)
                 return err;
 
@@ -246,8 +243,7 @@ static int compat_drm_addmap(struct file *file, unsigned int cmd,
             || __put_user(m32.flags, &map->flags))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_ADD_MAP, (unsigned long)map);
+        err = drm_ioctl(file, DRM_IOCTL_ADD_MAP, (unsigned long)map);
         if (err)
                 return err;
 
@@ -284,8 +280,7 @@ static int compat_drm_rmmap(struct file *file, unsigned int cmd,
         if (__put_user((void *)(unsigned long)handle, &map->handle))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RM_MAP, (unsigned long)map);
+        return drm_ioctl(file, DRM_IOCTL_RM_MAP, (unsigned long)map);
 }
 
 typedef struct drm_client32 {
@@ -314,8 +309,7 @@ static int compat_drm_getclient(struct file *file, unsigned int cmd,
         if (__put_user(idx, &client->idx))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_GET_CLIENT, (unsigned long)client);
+        err = drm_ioctl(file, DRM_IOCTL_GET_CLIENT, (unsigned long)client);
         if (err)
                 return err;
 
@@ -351,8 +345,7 @@ static int compat_drm_getstats(struct file *file, unsigned int cmd,
         if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats)))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_GET_STATS, (unsigned long)stats);
+        err = drm_ioctl(file, DRM_IOCTL_GET_STATS, (unsigned long)stats);
         if (err)
                 return err;
 
@@ -395,8 +388,7 @@ static int compat_drm_addbufs(struct file *file, unsigned int cmd,
             || __put_user(agp_start, &buf->agp_start))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_ADD_BUFS, (unsigned long)buf);
+        err = drm_ioctl(file, DRM_IOCTL_ADD_BUFS, (unsigned long)buf);
         if (err)
                 return err;
 
@@ -427,8 +419,7 @@ static int compat_drm_markbufs(struct file *file, unsigned int cmd,
             || __put_user(b32.high_mark, &buf->high_mark))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
+        return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
 }
 
 typedef struct drm_buf_info32 {
@@ -469,8 +460,7 @@ static int compat_drm_infobufs(struct file *file, unsigned int cmd,
             || __put_user(list, &request->list))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_INFO_BUFS, (unsigned long)request);
+        err = drm_ioctl(file, DRM_IOCTL_INFO_BUFS, (unsigned long)request);
         if (err)
                 return err;
 
@@ -531,8 +521,7 @@ static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
             || __put_user(list, &request->list))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_MAP_BUFS, (unsigned long)request);
+        err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request);
         if (err)
                 return err;
 
@@ -578,8 +567,7 @@ static int compat_drm_freebufs(struct file *file, unsigned int cmd,
                           &request->list))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_FREE_BUFS, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_FREE_BUFS, (unsigned long)request);
 }
 
 typedef struct drm_ctx_priv_map32 {
@@ -605,8 +593,7 @@ static int compat_drm_setsareactx(struct file *file, unsigned int cmd,
                           &request->handle))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request);
 }
 
 static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
@@ -628,8 +615,7 @@ static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
         if (__put_user(ctx_id, &request->ctx_id))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);
+        err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);
         if (err)
                 return err;
 
@@ -664,8 +650,7 @@ static int compat_drm_resctx(struct file *file, unsigned int cmd,
                           &res->contexts))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_RES_CTX, (unsigned long)res);
+        err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res);
         if (err)
                 return err;
 
@@ -718,8 +703,7 @@ static int compat_drm_dma(struct file *file, unsigned int cmd,
                           &d->request_sizes))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_DMA, (unsigned long)d);
+        err = drm_ioctl(file, DRM_IOCTL_DMA, (unsigned long)d);
         if (err)
                 return err;
 
@@ -751,8 +735,7 @@ static int compat_drm_agp_enable(struct file *file, unsigned int cmd,
         if (put_user(m32.mode, &mode->mode))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_AGP_ENABLE, (unsigned long)mode);
+        return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode);
 }
 
 typedef struct drm_agp_info32 {
@@ -781,8 +764,7 @@ static int compat_drm_agp_info(struct file *file, unsigned int cmd,
         if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_AGP_INFO, (unsigned long)info);
+        err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info);
         if (err)
                 return err;
 
@@ -827,16 +809,14 @@ static int compat_drm_agp_alloc(struct file *file, unsigned int cmd,
             || __put_user(req32.type, &request->type))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_AGP_ALLOC, (unsigned long)request);
+        err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request);
         if (err)
                 return err;
 
         if (__get_user(req32.handle, &request->handle)
             || __get_user(req32.physical, &request->physical)
             || copy_to_user(argp, &req32, sizeof(req32))) {
-                drm_ioctl(file->f_path.dentry->d_inode, file,
-                          DRM_IOCTL_AGP_FREE, (unsigned long)request);
+                drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
                 return -EFAULT;
         }
 
@@ -856,8 +836,7 @@ static int compat_drm_agp_free(struct file *file, unsigned int cmd,
             || __put_user(handle, &request->handle))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_AGP_FREE, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
 }
 
 typedef struct drm_agp_binding32 {
@@ -881,8 +860,7 @@ static int compat_drm_agp_bind(struct file *file, unsigned int cmd,
             || __put_user(req32.offset, &request->offset))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_AGP_BIND, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request);
 }
 
 static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
@@ -898,8 +876,7 @@ static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
             || __put_user(handle, &request->handle))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_AGP_UNBIND, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request);
 }
 #endif                          /* __OS_HAS_AGP */
 
@@ -923,8 +900,7 @@ static int compat_drm_sg_alloc(struct file *file, unsigned int cmd,
             || __put_user(x, &request->size))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_SG_ALLOC, (unsigned long)request);
+        err = drm_ioctl(file, DRM_IOCTL_SG_ALLOC, (unsigned long)request);
         if (err)
                 return err;
 
@@ -950,8 +926,7 @@ static int compat_drm_sg_free(struct file *file, unsigned int cmd,
             || __put_user(x << PAGE_SHIFT, &request->handle))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_SG_FREE, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_SG_FREE, (unsigned long)request);
 }
 
 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
@@ -981,8 +956,7 @@ static int compat_drm_update_draw(struct file *file, unsigned int cmd,
             __put_user(update32.data, &request->data))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_UPDATE_DRAW, (unsigned long)request);
+        err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request);
         return err;
 }
 #endif
@@ -1023,8 +997,7 @@ static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
             || __put_user(req32.request.signal, &request->request.signal))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_WAIT_VBLANK, (unsigned long)request);
+        err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request);
         if (err)
                 return err;
 
@@ -1094,16 +1067,14 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
          * than always failing.
          */
         if (nr >= ARRAY_SIZE(drm_compat_ioctls))
-                return drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
+                return drm_ioctl(filp, cmd, arg);
 
         fn = drm_compat_ioctls[nr];
 
-        lock_kernel();          /* XXX for now */
         if (fn != NULL)
                 ret = (*fn) (filp, cmd, arg);
         else
-                ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
-        unlock_kernel();
+                ret = drm_ioctl(filp, cmd, arg);
 
         return ret;
 }
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index 7d1d88cdf2dc..de32d22a8c39 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -115,7 +115,7 @@ static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
 static const struct file_operations i810_buffer_fops = {
         .open = drm_open,
         .release = drm_release,
-        .ioctl = drm_ioctl,
+        .unlocked_ioctl = drm_ioctl,
         .mmap = i810_mmap_buffers,
         .fasync = drm_fasync,
 };
diff --git a/drivers/gpu/drm/i810/i810_drv.c b/drivers/gpu/drm/i810/i810_drv.c
index fabb9a817966..c1e02752e023 100644
--- a/drivers/gpu/drm/i810/i810_drv.c
+++ b/drivers/gpu/drm/i810/i810_drv.c
@@ -59,7 +59,7 @@ static struct drm_driver driver = {
                  .owner = THIS_MODULE,
                  .open = drm_open,
                  .release = drm_release,
-                 .ioctl = drm_ioctl,
+                 .unlocked_ioctl = drm_ioctl,
                  .mmap = drm_mmap,
                  .poll = drm_poll,
                  .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/i830/i830_dma.c b/drivers/gpu/drm/i830/i830_dma.c
index 877bf6cb14a4..06bd732e6463 100644
--- a/drivers/gpu/drm/i830/i830_dma.c
+++ b/drivers/gpu/drm/i830/i830_dma.c
@@ -117,7 +117,7 @@ static int i830_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
 static const struct file_operations i830_buffer_fops = {
         .open = drm_open,
         .release = drm_release,
-        .ioctl = drm_ioctl,
+        .unlocked_ioctl = drm_ioctl,
         .mmap = i830_mmap_buffers,
         .fasync = drm_fasync,
 };
diff --git a/drivers/gpu/drm/i830/i830_drv.c b/drivers/gpu/drm/i830/i830_drv.c
index 389597e4a623..44f990bed8f4 100644
--- a/drivers/gpu/drm/i830/i830_drv.c
+++ b/drivers/gpu/drm/i830/i830_drv.c
@@ -70,7 +70,7 @@ static struct drm_driver driver = {
                  .owner = THIS_MODULE,
                  .open = drm_open,
                  .release = drm_release,
-                 .ioctl = drm_ioctl,
+                 .unlocked_ioctl = drm_ioctl,
                  .mmap = drm_mmap,
                  .poll = drm_poll,
                  .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 2fa217862058..24286ca168fc 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -329,7 +329,7 @@ static struct drm_driver driver = {
                  .owner = THIS_MODULE,
                  .open = drm_open,
                  .release = drm_release,
-                 .ioctl = drm_ioctl,
+                 .unlocked_ioctl = drm_ioctl,
                  .mmap = drm_gem_mmap,
                  .poll = drm_poll,
                  .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/i915/i915_ioc32.c b/drivers/gpu/drm/i915/i915_ioc32.c
index 1fe68a251b75..13b028994b2b 100644
--- a/drivers/gpu/drm/i915/i915_ioc32.c
+++ b/drivers/gpu/drm/i915/i915_ioc32.c
@@ -66,8 +66,7 @@ static int compat_i915_batchbuffer(struct file *file, unsigned int cmd,
                           &batchbuffer->cliprects))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_I915_BATCHBUFFER,
+        return drm_ioctl(file, DRM_IOCTL_I915_BATCHBUFFER,
                          (unsigned long)batchbuffer);
 }
 
@@ -102,8 +101,8 @@ static int compat_i915_cmdbuffer(struct file *file, unsigned int cmd,
                           &cmdbuffer->cliprects))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_I915_CMDBUFFER, (unsigned long)cmdbuffer);
+        return drm_ioctl(file, DRM_IOCTL_I915_CMDBUFFER,
+                         (unsigned long)cmdbuffer);
 }
 
 typedef struct drm_i915_irq_emit32 {
@@ -125,8 +124,8 @@ static int compat_i915_irq_emit(struct file *file, unsigned int cmd,
                           &request->irq_seq))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_I915_IRQ_EMIT, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_I915_IRQ_EMIT,
+                         (unsigned long)request);
 }
 typedef struct drm_i915_getparam32 {
         int param;
@@ -149,8 +148,8 @@ static int compat_i915_getparam(struct file *file, unsigned int cmd,
                           &request->value))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_I915_GETPARAM, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_I915_GETPARAM,
+                         (unsigned long)request);
 }
 
 typedef struct drm_i915_mem_alloc32 {
@@ -178,8 +177,8 @@ static int compat_i915_alloc(struct file *file, unsigned int cmd,
                           &request->region_offset))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_I915_ALLOC, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_I915_ALLOC,
+                         (unsigned long)request);
 }
 
 drm_ioctl_compat_t *i915_compat_ioctls[] = {
@@ -211,12 +210,10 @@ long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
         if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(i915_compat_ioctls))
                 fn = i915_compat_ioctls[nr - DRM_COMMAND_BASE];
 
-        lock_kernel();          /* XXX for now */
         if (fn != NULL)
                 ret = (*fn) (filp, cmd, arg);
         else
-                ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
-        unlock_kernel();
+                ret = drm_ioctl(filp, cmd, arg);
 
         return ret;
 }
diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c
index 97ee566ef749..ddfe16197b59 100644
--- a/drivers/gpu/drm/mga/mga_drv.c
+++ b/drivers/gpu/drm/mga/mga_drv.c
@@ -68,7 +68,7 @@ static struct drm_driver driver = {
                 .owner = THIS_MODULE,
                 .open = drm_open,
                 .release = drm_release,
-                .ioctl = drm_ioctl,
+                .unlocked_ioctl = drm_ioctl,
                 .mmap = drm_mmap,
                 .poll = drm_poll,
                 .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/mga/mga_ioc32.c b/drivers/gpu/drm/mga/mga_ioc32.c
index 30d00478ddee..c1f877b7bac1 100644
--- a/drivers/gpu/drm/mga/mga_ioc32.c
+++ b/drivers/gpu/drm/mga/mga_ioc32.c
@@ -100,8 +100,7 @@ static int compat_mga_init(struct file *file, unsigned int cmd,
         if (err)
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_MGA_INIT, (unsigned long)init);
+        return drm_ioctl(file, DRM_IOCTL_MGA_INIT, (unsigned long)init);
 }
 
 typedef struct drm_mga_getparam32 {
@@ -125,8 +124,7 @@ static int compat_mga_getparam(struct file *file, unsigned int cmd,
                           &getparam->value))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_MGA_GETPARAM, (unsigned long)getparam);
+        return drm_ioctl(file, DRM_IOCTL_MGA_GETPARAM, (unsigned long)getparam);
 }
 
 typedef struct drm_mga_drm_bootstrap32 {
@@ -166,8 +164,7 @@ static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd,
             || __put_user(dma_bootstrap32.agp_size, &dma_bootstrap->agp_size))
                 return -EFAULT;
 
-        err = drm_ioctl(file->f_path.dentry->d_inode, file,
-                        DRM_IOCTL_MGA_DMA_BOOTSTRAP,
+        err = drm_ioctl(file, DRM_IOCTL_MGA_DMA_BOOTSTRAP,
                         (unsigned long)dma_bootstrap);
         if (err)
                 return err;
@@ -220,12 +217,10 @@ long mga_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
         if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls))
                 fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE];
 
-        lock_kernel();          /* XXX for now */
         if (fn != NULL)
                 ret = (*fn) (filp, cmd, arg);
         else
-                ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
-        unlock_kernel();
+                ret = drm_ioctl(filp, cmd, arg);
 
         return ret;
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c
index 35249c35118f..3f943c01e995 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -341,7 +341,7 @@ static struct drm_driver driver = {
                 .owner = THIS_MODULE,
                 .open = drm_open,
                 .release = drm_release,
-                .ioctl = drm_ioctl,
+                .unlocked_ioctl = drm_ioctl,
                 .mmap = nouveau_ttm_mmap,
                 .poll = drm_poll,
                 .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/nouveau/nouveau_ioc32.c b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
index a2c30f4611ba..475ba810bba3 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ioc32.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ioc32.c
@@ -61,12 +61,10 @@ long nouveau_compat_ioctl(struct file *filp, unsigned int cmd,
         if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls))
                 fn = nouveau_compat_ioctls[nr - DRM_COMMAND_BASE];
 #endif
-        lock_kernel();    /* XXX for now */
         if (fn != NULL)
                 ret = (*fn)(filp, cmd, arg);
         else
-                ret = drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
-        unlock_kernel();
+                ret = drm_ioctl(filp, cmd, arg);
 
         return ret;
 }
diff --git a/drivers/gpu/drm/r128/r128_drv.c b/drivers/gpu/drm/r128/r128_drv.c
index 601f4c0e5da5..b806fdcc7170 100644
--- a/drivers/gpu/drm/r128/r128_drv.c
+++ b/drivers/gpu/drm/r128/r128_drv.c
@@ -64,7 +64,7 @@ static struct drm_driver driver = {
                 .owner = THIS_MODULE,
                 .open = drm_open,
                 .release = drm_release,
-                .ioctl = drm_ioctl,
+                .unlocked_ioctl = drm_ioctl,
                 .mmap = drm_mmap,
                 .poll = drm_poll,
                 .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/r128/r128_ioc32.c b/drivers/gpu/drm/r128/r128_ioc32.c
index d3cb676eee84..51c99fc4dd38 100644
--- a/drivers/gpu/drm/r128/r128_ioc32.c
+++ b/drivers/gpu/drm/r128/r128_ioc32.c
@@ -95,8 +95,7 @@ static int compat_r128_init(struct file *file, unsigned int cmd,
                           &init->agp_textures_offset))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_R128_INIT, (unsigned long)init);
+        return drm_ioctl(file, DRM_IOCTL_R128_INIT, (unsigned long)init);
 }
 
 typedef struct drm_r128_depth32 {
@@ -129,8 +128,7 @@ static int compat_r128_depth(struct file *file, unsigned int cmd,
                           &depth->mask))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_R128_DEPTH, (unsigned long)depth);
+        return drm_ioctl(file, DRM_IOCTL_R128_DEPTH, (unsigned long)depth);
 
 }
 
@@ -153,8 +151,7 @@ static int compat_r128_stipple(struct file *file, unsigned int cmd,
                           &stipple->mask))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_R128_STIPPLE, (unsigned long)stipple);
+        return drm_ioctl(file, DRM_IOCTL_R128_STIPPLE, (unsigned long)stipple);
 }
 
 typedef struct drm_r128_getparam32 {
@@ -178,8 +175,7 @@ static int compat_r128_getparam(struct file *file, unsigned int cmd,
                           &getparam->value))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
+        return drm_ioctl(file, DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam);
 }
 
 drm_ioctl_compat_t *r128_compat_ioctls[] = {
@@ -210,12 +206,10 @@ long r128_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
         if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(r128_compat_ioctls))
                 fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE];
 
-        lock_kernel();          /* XXX for now */
         if (fn != NULL)
                 ret = (*fn) (filp, cmd, arg);
         else
-                ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
-        unlock_kernel();
+                ret = drm_ioctl(filp, cmd, arg);
 
         return ret;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index dbd56ef82f9c..8ba3de7994d4 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -196,7 +196,7 @@ static struct drm_driver driver_old = {
                  .owner = THIS_MODULE,
                  .open = drm_open,
                  .release = drm_release,
-                 .ioctl = drm_ioctl,
+                 .unlocked_ioctl = drm_ioctl,
                  .mmap = drm_mmap,
                  .poll = drm_poll,
                  .fasync = drm_fasync,
@@ -284,7 +284,7 @@ static struct drm_driver kms_driver = {
                  .owner = THIS_MODULE,
                  .open = drm_open,
                  .release = drm_release,
-                 .ioctl = drm_ioctl,
+                 .unlocked_ioctl = drm_ioctl,
                  .mmap = radeon_mmap,
                  .poll = drm_poll,
                  .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/radeon/radeon_ioc32.c b/drivers/gpu/drm/radeon/radeon_ioc32.c
index a1bf11de308a..48b7cea31e08 100644
--- a/drivers/gpu/drm/radeon/radeon_ioc32.c
+++ b/drivers/gpu/drm/radeon/radeon_ioc32.c
@@ -92,8 +92,7 @@ static int compat_radeon_cp_init(struct file *file, unsigned int cmd,
                           &init->gart_textures_offset))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_CP_INIT, (unsigned long)init);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_CP_INIT, (unsigned long)init);
 }
 
 typedef struct drm_radeon_clear32 {
@@ -125,8 +124,7 @@ static int compat_radeon_cp_clear(struct file *file, unsigned int cmd,
                           &clr->depth_boxes))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_CLEAR, (unsigned long)clr);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_CLEAR, (unsigned long)clr);
 }
 
 typedef struct drm_radeon_stipple32 {
@@ -149,8 +147,7 @@ static int compat_radeon_cp_stipple(struct file *file, unsigned int cmd,
                           &request->mask))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_STIPPLE, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_STIPPLE, (unsigned long)request);
 }
 
 typedef struct drm_radeon_tex_image32 {
@@ -204,8 +201,7 @@ static int compat_radeon_cp_texture(struct file *file, unsigned int cmd,
                           &image->data))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_TEXTURE, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_TEXTURE, (unsigned long)request);
 }
 
 typedef struct drm_radeon_vertex2_32 {
@@ -238,8 +234,7 @@ static int compat_radeon_cp_vertex2(struct file *file, unsigned int cmd,
                           &request->prim))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_VERTEX2, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_VERTEX2, (unsigned long)request);
 }
 
 typedef struct drm_radeon_cmd_buffer32 {
@@ -268,8 +263,7 @@ static int compat_radeon_cp_cmdbuf(struct file *file, unsigned int cmd,
                           &request->boxes))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_CMDBUF, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_CMDBUF, (unsigned long)request);
 }
 
 typedef struct drm_radeon_getparam32 {
@@ -293,8 +287,7 @@ static int compat_radeon_cp_getparam(struct file *file, unsigned int cmd,
                           &request->value))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_GETPARAM, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_GETPARAM, (unsigned long)request);
 }
 
 typedef struct drm_radeon_mem_alloc32 {
@@ -322,8 +315,7 @@ static int compat_radeon_mem_alloc(struct file *file, unsigned int cmd,
                           &request->region_offset))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_ALLOC, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_ALLOC, (unsigned long)request);
 }
 
 typedef struct drm_radeon_irq_emit32 {
@@ -345,8 +337,7 @@ static int compat_radeon_irq_emit(struct file *file, unsigned int cmd,
                           &request->irq_seq))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_path.dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_IRQ_EMIT, (unsigned long)request);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_IRQ_EMIT, (unsigned long)request);
 }
 
 /* The two 64-bit arches where alignof(u64)==4 in 32-bit code */
@@ -372,8 +363,7 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
                           &request->value))
                 return -EFAULT;
 
-        return drm_ioctl(file->f_dentry->d_inode, file,
-                         DRM_IOCTL_RADEON_SETPARAM, (unsigned long) request);
+        return drm_ioctl(file, DRM_IOCTL_RADEON_SETPARAM, (unsigned long) request);
 }
 #else
 #define compat_radeon_cp_setparam NULL
@@ -413,12 +403,10 @@ long radeon_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
         if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(radeon_compat_ioctls))
                 fn = radeon_compat_ioctls[nr - DRM_COMMAND_BASE];
 
-        lock_kernel();          /* XXX for now */
         if (fn != NULL)
                 ret = (*fn) (filp, cmd, arg);
         else
-                ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
-        unlock_kernel();
+                ret = drm_ioctl(filp, cmd, arg);
 
         return ret;
 }
@@ -431,9 +419,7 @@ long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long
         if (nr < DRM_COMMAND_BASE)
                 return drm_compat_ioctl(filp, cmd, arg);
 
-        lock_kernel();          /* XXX for now */
-        ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
-        unlock_kernel();
+        ret = drm_ioctl(filp, cmd, arg);
 
         return ret;
 }
diff --git a/drivers/gpu/drm/savage/savage_drv.c b/drivers/gpu/drm/savage/savage_drv.c
index eee52aa92a7c..021de44c15ab 100644
--- a/drivers/gpu/drm/savage/savage_drv.c
+++ b/drivers/gpu/drm/savage/savage_drv.c
@@ -50,7 +50,7 @@ static struct drm_driver driver = {
                  .owner = THIS_MODULE,
                  .open = drm_open,
                  .release = drm_release,
-                 .ioctl = drm_ioctl,
+                 .unlocked_ioctl = drm_ioctl,
                  .mmap = drm_mmap,
                  .poll = drm_poll,
                  .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c
index e725cc0b1155..4fd1f067d380 100644
--- a/drivers/gpu/drm/sis/sis_drv.c
+++ b/drivers/gpu/drm/sis/sis_drv.c
@@ -80,7 +80,7 @@ static struct drm_driver driver = {
                  .owner = THIS_MODULE,
                  .open = drm_open,
                  .release = drm_release,
-                 .ioctl = drm_ioctl,
+                 .unlocked_ioctl = drm_ioctl,
                  .mmap = drm_mmap,
                  .poll = drm_poll,
                  .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/tdfx/tdfx_drv.c b/drivers/gpu/drm/tdfx/tdfx_drv.c
index 012ff2e356b2..ec5a43e65722 100644
--- a/drivers/gpu/drm/tdfx/tdfx_drv.c
+++ b/drivers/gpu/drm/tdfx/tdfx_drv.c
@@ -48,7 +48,7 @@ static struct drm_driver driver = {
                  .owner = THIS_MODULE,
                  .open = drm_open,
                  .release = drm_release,
-                 .ioctl = drm_ioctl,
+                 .unlocked_ioctl = drm_ioctl,
                  .mmap = drm_mmap,
                  .poll = drm_poll,
                  .fasync = drm_fasync,
diff --git a/drivers/gpu/drm/via/via_drv.c b/drivers/gpu/drm/via/via_drv.c
index bc2f51843005..7a1b210401e0 100644
--- a/drivers/gpu/drm/via/via_drv.c
+++ b/drivers/gpu/drm/via/via_drv.c
@@ -58,7 +58,7 @@ static struct drm_driver driver = {
                 .owner = THIS_MODULE,
                 .open = drm_open,
                 .release = drm_release,
-                .ioctl = drm_ioctl,
+                .unlocked_ioctl = drm_ioctl,
                 .mmap = drm_mmap,
                 .poll = drm_poll,
                 .fasync = drm_fasync,
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 19ef8ebdc662..71dafb69cfeb 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -296,6 +296,7 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
 #define DRM_MASTER      0x2
 #define DRM_ROOT_ONLY   0x4
 #define DRM_CONTROL_ALLOW 0x8
+#define DRM_UNLOCKED    0x10
 
 struct drm_ioctl_desc {
         unsigned int cmd;
@@ -1128,8 +1129,8 @@ static inline int drm_mtrr_del(int handle, unsigned long offset,
                                 /* Driver support (drm_drv.h) */
 extern int drm_init(struct drm_driver *driver);
 extern void drm_exit(struct drm_driver *driver);
-extern int drm_ioctl(struct inode *inode, struct file *filp,
-                     unsigned int cmd, unsigned long arg);
+extern long drm_ioctl(struct file *filp,
+                      unsigned int cmd, unsigned long arg);
 extern long drm_compat_ioctl(struct file *filp,
                              unsigned int cmd, unsigned long arg);
 extern int drm_lastclose(struct drm_device *dev);