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Message-ID: <5b594d30e08b4acaf7aaf9b7a4419d2a.mripard@kernel.org>
Date:   Fri, 24 Nov 2023 10:41:05 +0000
From:   "Maxime Ripard" <mripard@kernel.org>
To:     "Dmitry Osipenko" <dmitry.osipenko@collabora.com>
Subject: Re: [PATCH v18 06/26] drm/shmem-helper: Add and use pages_pin_count
In-Reply-To: <20231029230205.93277-7-dmitry.osipenko@collabora.com>
References: <20231029230205.93277-7-dmitry.osipenko@collabora.com>
Cc:     dri-devel@lists.freedesktop.org, kernel@collabora.com,
        linux-kernel@vger.kernel.org,
        virtualization@lists.linux-foundation.org,
        "Boris Brezillon" <boris.brezillon@collabora.com>,
        "Chia-I Wu" <olvaffe@gmail.com>,
        =?utf-8?b?Q2hyaXN0aWFuIEvDtm5pZw==?= <christian.koenig@amd.com>,
        "Daniel Vetter" <daniel@ffwll.ch>,
        "David Airlie" <airlied@gmail.com>,
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        "Gurchetan Singh" <gurchetansingh@chromium.org>,
        "Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
        "Maxime Ripard" <mripard@kernel.org>,
        "Melissa Wen" <mwen@igalia.com>, "Qiang Yu" <yuq825@gmail.com>,
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On Mon, 30 Oct 2023 02:01:45 +0300, Dmitry Osipenko wrote:
> Add separate pages_pin_count for tracking of whether drm-shmem pages are
> moveable or not. With the addition of memory shrinker support to drm-shme=
m,
> the pages_use_count will no longer determine whether pages are hard-pinned
> in memory, but whether pages exist and are soft-pinned (and could be swap=
ped
> out). The pages_pin_count > 1 will hard-pin pages in memory.
>=20
> [ ... ]

Acked-by: Maxime Ripard <mripard@kernel.org>

Thanks!
Maxime