linux-kernel - Re: [PATCH v17 13/18] drm/shmem-helper: Add memory shrinker

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Message-ID: <ccada906-2380-7e98-99e8-e83d9b89fbd1@collabora.com>
Date:   Thu, 5 Oct 2023 20:28:17 +0300
From:   Dmitry Osipenko <dmitry.osipenko@...labora.com>
To:     Boris Brezillon <boris.brezillon@...labora.com>
Cc:     David Airlie <airlied@...il.com>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Gurchetan Singh <gurchetansingh@...omium.org>,
        Chia-I Wu <olvaffe@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Christian König <christian.koenig@....com>,
        Qiang Yu <yuq825@...il.com>,
        Steven Price <steven.price@....com>,
        Emma Anholt <emma@...olt.net>, Melissa Wen <mwen@...lia.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com, virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v17 13/18] drm/shmem-helper: Add memory shrinker

On 10/3/23 14:09, Boris Brezillon wrote:
> Unmap tends to refer to a VM related operation (removing a mapping in
> the CPU or GPU VM), so it's confusing too IMHO. What we do here is
> return pages to the shmem file logic, so they can be reclaimed.
> 
> Given the drm_gem function doing that is called drm_gem_put_pages(),
> maybe rename it drm_gem_shmem_shrinker_put_pages_locked(), and rename
> drm_gem_shmem_swapin_locked() into
> drm_gem_shmem_shrinker_get_pages_locked(), to be consistent.

The swapin is a common term and function naming scheme among DRM
drivers. That name shouldn't be changed.

The drm_gem_shmem_shrinker_put_pages_locked() sounds okay, let's use it.

-- 
Best regards,
Dmitry