Re: [PATCH 2/2] drm/amdgpu: Replace use of system_unbound_wq with system_dfl_wq

[Alex Deucher]

On Thu, May 14, 2026 at 7:04 AM Marco Crivellari
<marco.crivellari@xxxxxxxx> wrote:
>
> This patch continues the effort to refactor workqueue APIs, which has begun
> with the changes introducing new workqueues and a new alloc_workqueue flag:
>
>    commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
>    commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")
>
> The point of the refactoring is to eventually alter the default behavior of
> workqueues to become unbound by default so that their workload placement is
> optimized by the scheduler.
>
> Before that to happen, workqueue users must be converted to the better named
> new workqueues with no intended behaviour changes:
>
>    system_wq -> system_percpu_wq
>    system_unbound_wq -> system_dfl_wq
>
> This way the old obsolete workqueues (system_wq, system_unbound_wq) can be
> removed in the future.
>
> Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@xxxxxxxxxxxxx/
> Suggested-by: Tejun Heo <tj@xxxxxxxxxx>
> Signed-off-by: Marco Crivellari <marco.crivellari@xxxxxxxx>

Applied the series.  Thanks!

Alex

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c
> index d386bc775d03..0811593fca7f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dev_coredump.c
> @@ -586,7 +586,7 @@ void amdgpu_coredump(struct amdgpu_device *adev, bool skip_vram_check,
>          */
>         adev->coredump = coredump;
>         /* Kick off coredump formatting to a worker thread. */
> -       queue_work(system_unbound_wq, &adev->coredump_work);
> +       queue_work(system_dfl_wq, &adev->coredump_work);
>
>         drm_info(dev, "AMDGPU device coredump file has been created\n");
>         drm_info(dev, "Check your /sys/class/drm/card%d/device/devcoredump/data\n",
> --
> 2.54.0
>