linux-kernel - Re: [PATCH v2 09/13] drm/gem: Add LRU/shrinker helper

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Date:   Tue, 19 Jul 2022 21:56:09 +0300
From:   Dmitry Osipenko <dmitry.osipenko@...labora.com>
To:     Rob Clark <robdclark@...il.com>, dri-devel@...ts.freedesktop.org
Cc:     freedreno@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        Rob Clark <robdclark@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 09/13] drm/gem: Add LRU/shrinker helper

On 7/19/22 20:18, Rob Clark wrote:
> +void
> +drm_gem_lru_move_tail_locked(struct drm_gem_lru *lru, struct drm_gem_object *obj)
> +{
> +	WARN_ON(!mutex_is_locked(lru->lock));

Nit: What about lockdep_assert_held_once(&lru->lock->base)) ?

Otherwise, looks good! I'll use it for the DRM-SHMEM shrinker after
completing the work on the dma-buf locks.

Reviewed-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>

-- 
Best regards,
Dmitry