Hi,
On Wed, Mar 31, 2021 at 6:24 PM Rob Clark <robdcl...@gmail.com> wrote:
>
> From: Rob Clark <robdcl...@chromium.org>
>
> In normal cases the gem obj lock is acquired first before mm_lock. The
> exception is iterating the various object lists. In the shrinker path,
> deadlock is avoided by using msm_gem_trylock() and skipping over objects
> that cannot be locked. But for debugfs the straightforward thing is to
> split things out into a separate list of all objects protected by it's
> own lock.
>
> Fixes: d984457b31c4 ("drm/msm: Add priv->mm_lock to protect active/inactive
> lists")
> Signed-off-by: Rob Clark <robdcl...@chromium.org>
> Tested-by: Douglas Anderson <diand...@chromium.org>
Reviewed-by: Douglas Anderson <diand...@chromium.org>
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