The first patch is a drm core patch that replaces the for loop in drm_mm_insert_node_in_range() with the iterator and would not cause any functional changes. The second patch is a i915 driver specific patch that also uses the iterator but solves a different problem.
v2: - Added a new patch to this series to fix a potential NULL dereference. - Fixed a typo associated with the iterator introduced in the drm core patch. - Added locking around the snippet in the i915 patch that traverses the GGTT hole nodes.
v3: (Tvrtko) - Replaced mutex_lock with mutex_lock_interruptible_nested() in the i915 patch.
Cc: Tvrtko Ursulin tvrtko.ursulin@linux.intel.com Cc: Nirmoy Das nirmoy.das@intel.com Cc: Christian König christian.koenig@amd.com
Vivek Kasireddy (3): drm/mm: Ensure that the entry is not NULL before extracting rb_node drm/mm: Add an iterator to optimally walk over holes for an allocation (v4) drm/i915/gem: Don't try to map and fence large scanout buffers (v9)
drivers/gpu/drm/drm_mm.c | 37 +++++---- drivers/gpu/drm/i915/i915_gem.c | 128 +++++++++++++++++++++++--------- include/drm/drm_mm.h | 36 +++++++++ 3 files changed, 148 insertions(+), 53 deletions(-)