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Message-ID: <5ebb290e629a83f12525c2ddf0ca2082.mripard@kernel.org>
Date:   Fri, 24 Nov 2023 10:41:24 +0000
From:   "Maxime Ripard" <mripard@kernel.org>
To:     "Dmitry Osipenko" <dmitry.osipenko@collabora.com>
Subject: Re: [PATCH v18 07/26] drm/shmem-helper: Use refcount_t for
 pages_use_count
In-Reply-To: <20231029230205.93277-8-dmitry.osipenko@collabora.com>
References: <20231029230205.93277-8-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>,
        "Emma Anholt" <emma@anholt.net>,
        "Gerd Hoffmann" <kraxel@redhat.com>,
        "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>,
        "Steven Price" <steven.price@arm.com>,
        "Thomas Zimmermann" <tzimmermann@suse.de>
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On Mon, 30 Oct 2023 02:01:46 +0300, Dmitry Osipenko wrote:
> Use atomic refcount_t helper for pages_use_count to optimize pin/unpin
> functions by skipping reservation locking while GEM's pin refcount > 1.
> 
> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
> Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
> 
> [ ... ]

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

Thanks!
Maxime