Chris Wilson <ch...@chris-wilson.co.uk> writes: > Quoting Mika Kuoppala (2021-02-10 10:49:55) >> Chris Wilson <ch...@chris-wilson.co.uk> writes: >> > diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c >> > b/drivers/gpu/drm/i915/gt/intel_gtt.c >> > index d34770ae4c9a..5ac9eb4a3a92 100644 >> > --- a/drivers/gpu/drm/i915/gt/intel_gtt.c >> > +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c >> > @@ -158,10 +158,49 @@ static void poison_scratch_page(struct >> > drm_i915_gem_object *scratch) >> > >> > vaddr = kmap(page); >> > memset(vaddr, val, PAGE_SIZE); >> > + set_page_dirty(page); /* keep the poisoned contents */ >> >> Should we use locked version in here? > > We don't hold the page-lock here, so no. If this is not an anonymous > page, something is very wrong :p
Cleared confusion in irc. We dont hold the lock and set_page_dirty dont take it. But this is anonymous page and we are sole user during poisoning. Reviewed-by: Mika Kuoppala <mika.kuopp...@linux.intel.com> > -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
