… > +++ b/drivers/accel/rocket/rocket_gem.c > @@ -0,0 +1,131 @@ … > +static void rocket_gem_bo_free(struct drm_gem_object *obj) > +{ … > + mutex_lock(&rdev->iommu_lock); > + > + sgt = drm_gem_shmem_get_pages_sgt(&bo->base); … > + drm_gem_shmem_free(&bo->base); > + > + mutex_unlock(&rdev->iommu_lock); > +} …
Under which circumstances would you become interested to apply a statement like “guard(mutex)(&rdev->iommu_lock);”? https://elixir.bootlin.com/linux/v6.15/source/include/linux/mutex.h#L201 Regards, Markus