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SubjectRe: [PATCH v2] drm/msm: Drop mm_lock in scan loop
Hi,

On Fri, Apr 2, 2021 at 2:08 PM Rob Clark <robdclark@gmail.com> wrote:
>
> From: Rob Clark <robdclark@chromium.org>
>
> lock_stat + mmm_donut[1] say that this reduces contention on mm_lock
> significantly (~350x lower waittime-max, and ~100x lower waittime-avg)
>
> [1] https://chromium.googlesource.com/chromiumos/platform/microbenchmarks/+/refs/heads/main/mmm_donut.py
>
> Signed-off-by: Rob Clark <robdclark@chromium.org>
> ---
> drivers/gpu/drm/msm/msm_drv.h | 3 +-
> drivers/gpu/drm/msm/msm_gem.c | 2 +-
> drivers/gpu/drm/msm/msm_gem_shrinker.c | 48 ++++++++++++++++++++++----
> 3 files changed, 45 insertions(+), 8 deletions(-)

Looks good to me now!

Reviewed-by: Douglas Anderson <dianders@chromium.org>

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