Messages in this thread | | | From | Doug Anderson <> | Date | Thu, 1 Apr 2021 08:34:50 -0700 | Subject | Re: [PATCH v2 3/4] drm/msm: Fix debugfs deadlock |
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Hi,
On Wed, Mar 31, 2021 at 6:24 PM Rob Clark <robdclark@gmail.com> wrote: > > From: Rob Clark <robdclark@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 <robdclark@chromium.org> > Tested-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
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