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Commit 051b6646 authored 1 month ago by Dmitry Osipenko

drm/shmem-helper: Use refcount_t for pages_use_count

Use atomic refcount_t helper for pages_use_count to optimize pin/unpin
functions by skipping reservation locking while GEM's pin refcount > 1.

Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.d>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250322212608.40511-9-dmitry.osipenko@collabora.com

parent d586b535

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Boris Brezillon @bbrezillon
mentioned in commit d5d0daff
· 3 weeks ago

mentioned in commit d5d0daff

mentioned in commit d5d0daffccc2a1f40d90d241b53629af3a013557

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