On 3/16/22 18:04, Steven Price wrote: > On 14/03/2022 22:42, Dmitry Osipenko wrote: >> Introduce a common DRM SHMEM shrinker. It allows to reduce code >> duplication among DRM drivers, it also handles complicated lockings >> for the drivers. This is initial version of the shrinker that covers >> basic needs of GPU drivers. >> >> This patch is based on a couple ideas borrowed from Rob's Clark MSM >> shrinker and Thomas' Zimmermann variant of SHMEM shrinker. >> >> GPU drivers that want to use generic DRM memory shrinker must support >> generic GEM reservations. >> >> Signed-off-by: Daniel Almeida <daniel.almeida@xxxxxxxxxxxxx> >> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> > This looks fine to me, but one nitpick: you should update the comment in > struct drm_gem_shmem_object: > >> /** >> * @madv: State for madvise >> * >> * 0 is active/inuse. >> * A negative value is the object is purged. >> * Positive values are driver specific and not used by the helpers. >> */ >> int madv; > This is adding a helper which cares about the positive values. Good catch, I'll update the comment in v3.
