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drm/msm: Implement .gem_free_object_unlocked
We use a llist and a worker to delay the object cleanup. This avoids taking mmap_sem and struct_mutex in the wrong order when calling drm_gem_object_put_unlocked() from drm_gem_mmap(). Fixes lockdep problem with copy_from_user() in msm_ioctl_gem_submit(). Signed-off-by: Kristian H. Kristensen <hoegsberg@chromium.org> Signed-off-by: Rob Clark <robdclark@chromium.org>
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Kristian H. Kristensen
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Rob Clark
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Apr 19, 2019
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