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| author | Matthew Wilcox <willy@infradead.org> | 2018-10-30 17:53:52 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2018-11-14 12:50:34 +0100 |
| commit | 2ae7f165c0b022a8ed1732f8ab2c11b2c173146e (patch) | |
| tree | f60b615b1fad9053c153c51b02a9401304767513 /drivers/gpu/drm/virtio/virtgpu_object.c | |
| parent | drm/virtio: Handle error from virtio_gpu_resource_id_get (diff) | |
| download | linux-2ae7f165c0b022a8ed1732f8ab2c11b2c173146e.tar.xz linux-2ae7f165c0b022a8ed1732f8ab2c11b2c173146e.zip | |
drm/virtio: Use IDAs more efficiently
0-based IDAs are more efficient than any other base. Convert the
1-based IDAs to be 0-based.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20181030165352.13065-2-willy@infradead.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_object.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index 5ac42dded217..f39a183d59c2 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -28,18 +28,18 @@ static int virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev, uint32_t *resid) { - int handle = ida_alloc_min(&vgdev->resource_ida, 1, GFP_KERNEL); + int handle = ida_alloc(&vgdev->resource_ida, GFP_KERNEL); if (handle < 0) return handle; - *resid = handle; + *resid = handle + 1; return 0; } static void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id) { - ida_free(&vgdev->resource_ida, id); + ida_free(&vgdev->resource_ida, id - 1); } static void virtio_gpu_ttm_bo_destroy(struct ttm_buffer_object *tbo) |