On Thu, 3 Oct 2019 09:45:55 +0300 Jaak Ristioja wrote: > On 30.09.19 16:29, Frediano Ziglio wrote: > > Why didn't you update bug at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813620? > > I know it can seem tedious but would help tracking it. > > I suppose the lack on centralized tracking and handling of Linux kernel > bugs is a delicate topic, so I don't want to rant much more on that. > Updating that bug would tedious and time-consuming indeed, which is why > I haven't done that. To be honest, I don't have enough time and motivation. Give the diff below a go only when it is convenient and only if it makes a bit of sense to you. --- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c +++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c @@ -110,6 +110,7 @@ int ttm_eu_reserve_buffers(struct ww_acq ww_acquire_init(ticket, &reservation_ww_class); list_for_each_entry(entry, list, head) { + bool lockon = false; struct ttm_buffer_object *bo = entry->bo; ret = __ttm_bo_reserve(bo, intr, (ticket == NULL), ticket); @@ -150,6 +151,7 @@ int ttm_eu_reserve_buffers(struct ww_acq dma_resv_lock_slow(bo->base.resv, ticket); ret = 0; } + lockon = !ret; } if (!ret && entry->num_shared) @@ -157,6 +159,8 @@ int ttm_eu_reserve_buffers(struct ww_acq entry->num_shared); if (unlikely(ret != 0)) { + if (lockon) + dma_resv_unlock(bo->base.resv); if (ret == -EINTR) ret = -ERESTARTSYS; if (ticket) { _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
