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Use drm_gem_object_[handle_]unreference_unlocked where possible

Browse source 
Mostly obvious simplifications.

The i915 pread/pwrite ioctls, intel_overlay_put_image and
nouveau_gem_new were incorrectly using the locked versions
without locking: this is also fixed in this patch.

Signed-off-by: Luca Barbieri <luca@luca-barbieri.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Luca Barbieri 2010-02-09 05:49:12 +00:00 committed by Dave Airlie
parent c3ae90c099
commit bc9025bdc4
15 changed files with 47 additions and 121 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
drivers/gpu/drm/drm_gem.c
View file

@ -192,9 +192,7 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle)
idr_remove(&filp->object_idr, handle);
spin_unlock(&filp->table_lock);
mutex_lock(&dev->struct_mutex);
drm_gem_object_handle_unreference(obj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_handle_unreference_unlocked(obj);
return 0;
}
@ -325,9 +323,7 @@ drm_gem_flink_ioctl(struct drm_device *dev, void *data,
}
err:
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(obj);
return ret;
}
@ -358,9 +354,7 @@ drm_gem_open_ioctl(struct drm_device *dev, void *data,
return -ENOENT;
ret = drm_gem_handle_create(file_priv, obj, &handle);
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(obj);
if (ret)
return ret;
@ -390,7 +384,7 @@ drm_gem_object_release_handle(int id, void *ptr, void *data)
{
struct drm_gem_object *obj = ptr;
drm_gem_object_handle_unreference(obj);
drm_gem_object_handle_unreference_unlocked(obj);
return 0;
}
@ -403,12 +397,10 @@ drm_gem_object_release_handle(int id, void *ptr, void *data)
void
drm_gem_release(struct drm_device *dev, struct drm_file *file_private)
{
mutex_lock(&dev->struct_mutex);
idr_for_each(&file_private->object_idr,
&drm_gem_object_release_handle, NULL);
idr_destroy(&file_private->object_idr);
mutex_unlock(&dev->struct_mutex);
}
static void
@ -516,11 +508,8 @@ EXPORT_SYMBOL(drm_gem_vm_open);
void drm_gem_vm_close(struct vm_area_struct *vma)
{
struct drm_gem_object *obj = vma->vm_private_data;
struct drm_device *dev = obj->dev;
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(obj);
}
EXPORT_SYMBOL(drm_gem_vm_close);

16
drivers/gpu/drm/i915/i915_gem.c
View file

@ -128,9 +128,7 @@ i915_gem_create_ioctl(struct drm_device *dev, void *data,
return -ENOMEM;
ret = drm_gem_handle_create(file_priv, obj, &handle);
mutex_lock(&dev->struct_mutex);
drm_gem_object_handle_unreference(obj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_handle_unreference_unlocked(obj);
if (ret)
return ret;
@ -488,7 +486,7 @@ i915_gem_pread_ioctl(struct drm_device *dev, void *data,
*/
if (args->offset > obj->size || args->size > obj->size ||
args->offset + args->size > obj->size) {
drm_gem_object_unreference(obj);
drm_gem_object_unreference_unlocked(obj);
return -EINVAL;
}
@ -501,7 +499,7 @@ i915_gem_pread_ioctl(struct drm_device *dev, void *data,
file_priv);
}
drm_gem_object_unreference(obj);
drm_gem_object_unreference_unlocked(obj);
return ret;
}
@ -961,7 +959,7 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
*/
if (args->offset > obj->size || args->size > obj->size ||
args->offset + args->size > obj->size) {
drm_gem_object_unreference(obj);
drm_gem_object_unreference_unlocked(obj);
return -EINVAL;
}
@ -995,7 +993,7 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
DRM_INFO("pwrite failed %d\n", ret);
#endif
drm_gem_object_unreference(obj);
drm_gem_object_unreference_unlocked(obj);
return ret;
}
@ -1138,9 +1136,7 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
PROT_READ | PROT_WRITE, MAP_SHARED,
args->offset);
up_write(&current->mm->mmap_sem);
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(obj);
if (IS_ERR((void *)addr))
return addr;

4
drivers/gpu/drm/i915/i915_gem_tiling.c
View file

@ -438,9 +438,7 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
obj_priv = obj->driver_private;
if (!i915_tiling_ok(dev, args->stride, obj->size, args->tiling_mode)) {
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(obj);
return -EINVAL;
}

13
drivers/gpu/drm/i915/intel_display.c
View file

@ -3434,11 +3434,10 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
intel_crtc->cursor_bo = bo;
return 0;
fail:
mutex_lock(&dev->struct_mutex);
fail_locked:
drm_gem_object_unreference(bo);
mutex_unlock(&dev->struct_mutex);
fail:
drm_gem_object_unreference_unlocked(bo);
return ret;
}
@ -4351,9 +4350,7 @@ static void intel_user_framebuffer_destroy(struct drm_framebuffer *fb)
intelfb_remove(dev, fb);
drm_framebuffer_cleanup(fb);
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(intel_fb->obj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(intel_fb->obj);
kfree(intel_fb);
}
@ -4416,9 +4413,7 @@ intel_user_framebuffer_create(struct drm_device *dev,
ret = intel_framebuffer_create(dev, mode_cmd, &fb, obj);
if (ret) {
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(obj);
return NULL;
}

2
drivers/gpu/drm/i915/intel_overlay.c
View file

@ -1179,7 +1179,7 @@ int intel_overlay_put_image(struct drm_device *dev, void *data,
out_unlock:
mutex_unlock(&dev->struct_mutex);
mutex_unlock(&dev->mode_config.mutex);
drm_gem_object_unreference(new_bo);
drm_gem_object_unreference_unlocked(new_bo);
kfree(params);
return ret;

7
drivers/gpu/drm/nouveau/nouveau_display.c
View file

@ -39,11 +39,8 @@ nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
if (drm_fb->fbdev)
nouveau_fbcon_remove(dev, drm_fb);
if (fb->nvbo) {
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(fb->nvbo->gem);
mutex_unlock(&dev->struct_mutex);
}
if (fb->nvbo)
drm_gem_object_unreference_unlocked(fb->nvbo->gem);
drm_framebuffer_cleanup(drm_fb);
kfree(fb);

4
drivers/gpu/drm/nouveau/nouveau_fbcon.c
View file

@ -401,10 +401,8 @@ nouveau_fbcon_remove(struct drm_device *dev, struct drm_framebuffer *fb)
unregister_framebuffer(info);
nouveau_bo_unmap(nouveau_fb->nvbo);
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(nouveau_fb->nvbo->gem);
drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
nouveau_fb->nvbo = NULL;
mutex_unlock(&dev->struct_mutex);
if (par)
drm_fb_helper_free(&par->helper);
framebuffer_release(info);

26
drivers/gpu/drm/nouveau/nouveau_gem.c
View file

@ -167,12 +167,10 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
ret = drm_gem_handle_create(file_priv, nvbo->gem, &req->info.handle);
out:
mutex_lock(&dev->struct_mutex);
drm_gem_object_handle_unreference(nvbo->gem);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_handle_unreference_unlocked(nvbo->gem);
if (ret)
drm_gem_object_unreference(nvbo->gem);
drm_gem_object_unreference_unlocked(nvbo->gem);
return ret;
}
@ -865,9 +863,7 @@ nouveau_gem_ioctl_pin(struct drm_device *dev, void *data,
req->domain = NOUVEAU_GEM_DOMAIN_VRAM;
out:
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gem);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gem);
return ret;
}
@ -891,9 +887,7 @@ nouveau_gem_ioctl_unpin(struct drm_device *dev, void *data,
ret = nouveau_bo_unpin(nouveau_gem_object(gem));
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gem);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gem);
return ret;
}
@ -935,9 +929,7 @@ nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
}
out:
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gem);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gem);
return ret;
}
@ -965,9 +957,7 @@ nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
ret = 0;
out:
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gem);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gem);
return ret;
}
@ -986,9 +976,7 @@ nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
return -EINVAL;
ret = nouveau_gem_info(gem, req);
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gem);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gem);
return ret;
}

9
drivers/gpu/drm/nouveau/nouveau_notifier.c
View file

@ -61,11 +61,8 @@ nouveau_notifier_init_channel(struct nouveau_channel *chan)
chan->notifier_bo = ntfy;
out_err:
if (ret) {
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(ntfy->gem);
mutex_unlock(&dev->struct_mutex);
}
if (ret)
drm_gem_object_unreference_unlocked(ntfy->gem);
return ret;
}
@ -81,8 +78,8 @@ nouveau_notifier_takedown_channel(struct nouveau_channel *chan)
nouveau_bo_unmap(chan->notifier_bo);
mutex_lock(&dev->struct_mutex);
nouveau_bo_unpin(chan->notifier_bo);
drm_gem_object_unreference(chan->notifier_bo->gem);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(chan->notifier_bo->gem);
nouveau_mem_takedown(&chan->notifier_heap);
}

4
drivers/gpu/drm/nouveau/nv04_crtc.c
View file

@ -926,9 +926,7 @@ nv04_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.offset);
nv_crtc->cursor.show(nv_crtc, true);
out:
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gem);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gem);
return ret;
}

4
drivers/gpu/drm/nouveau/nv50_crtc.c
View file

@ -358,9 +358,7 @@ nv50_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
nv_crtc->cursor.show(nv_crtc, true);
out:
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gem);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gem);
return ret;
}

7
drivers/gpu/drm/radeon/radeon_cs.c
View file

@ -196,11 +196,8 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error)
radeon_bo_list_unreserve(&parser->validated);
}
for (i = 0; i < parser->nrelocs; i++) {
if (parser->relocs[i].gobj) {
mutex_lock(&parser->rdev->ddev->struct_mutex);
drm_gem_object_unreference(parser->relocs[i].gobj);
mutex_unlock(&parser->rdev->ddev->struct_mutex);
}
if (parser->relocs[i].gobj)
drm_gem_object_unreference_unlocked(parser->relocs[i].gobj);
}
kfree(parser->track);
kfree(parser->relocs);

8
drivers/gpu/drm/radeon/radeon_cursor.c
View file

@ -169,17 +169,13 @@ int radeon_crtc_cursor_set(struct drm_crtc *crtc,
unpin:
if (radeon_crtc->cursor_bo) {
radeon_gem_object_unpin(radeon_crtc->cursor_bo);
mutex_lock(&crtc->dev->struct_mutex);
drm_gem_object_unreference(radeon_crtc->cursor_bo);
mutex_unlock(&crtc->dev->struct_mutex);
drm_gem_object_unreference_unlocked(radeon_crtc->cursor_bo);
}
radeon_crtc->cursor_bo = obj;
return 0;
fail:
mutex_lock(&crtc->dev->struct_mutex);
drm_gem_object_unreference(obj);
mutex_unlock(&crtc->dev->struct_mutex);
drm_gem_object_unreference_unlocked(obj);
return 0;
}

7
drivers/gpu/drm/radeon/radeon_display.c
View file

@ -679,11 +679,8 @@ static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
if (fb->fbdev)
radeonfb_remove(dev, fb);
if (radeon_fb->obj) {
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(radeon_fb->obj);
mutex_unlock(&dev->struct_mutex);
}
if (radeon_fb->obj)
drm_gem_object_unreference_unlocked(radeon_fb->obj);
drm_framebuffer_cleanup(fb);
kfree(radeon_fb);
}

36
drivers/gpu/drm/radeon/radeon_gem.c
View file

@ -69,9 +69,7 @@ int radeon_gem_object_create(struct radeon_device *rdev, int size,
if (r != -ERESTARTSYS)
DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n",
size, initial_domain, alignment, r);
mutex_lock(&rdev->ddev->struct_mutex);
drm_gem_object_unreference(gobj);
mutex_unlock(&rdev->ddev->struct_mutex);
drm_gem_object_unreference_unlocked(gobj);
return r;
}
gobj->driver_private = robj;
@ -202,14 +200,10 @@ int radeon_gem_create_ioctl(struct drm_device *dev, void *data,
}
r = drm_gem_handle_create(filp, gobj, &handle);
if (r) {
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gobj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gobj);
return r;
}
mutex_lock(&dev->struct_mutex);
drm_gem_object_handle_unreference(gobj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_handle_unreference_unlocked(gobj);
args->handle = handle;
return 0;
}
@ -236,9 +230,7 @@ int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data,
r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain);
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gobj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gobj);
return r;
}
@ -255,9 +247,7 @@ int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data,
}
robj = gobj->driver_private;
args->addr_ptr = radeon_bo_mmap_offset(robj);
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gobj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gobj);
return 0;
}
@ -288,9 +278,7 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
default:
break;
}
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gobj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gobj);
return r;
}
@ -311,9 +299,7 @@ int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
/* callback hw specific functions if any */
if (robj->rdev->asic->ioctl_wait_idle)
robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj);
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gobj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gobj);
return r;
}
@ -331,9 +317,7 @@ int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
return -EINVAL;
robj = gobj->driver_private;
r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch);
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gobj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gobj);
return r;
}
@ -356,8 +340,6 @@ int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch);
radeon_bo_unreserve(rbo);
out:
mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(gobj);
mutex_unlock(&dev->struct_mutex);
drm_gem_object_unreference_unlocked(gobj);
return r;
}