[Intel-gfx] [PATCH 2/2] drm/i915: Use trylock in shrinker for ggtt on bsw vt-d and bxt, v2.

The stop_machine() lock may allocate memory, but is called inside vm->mutex, which is taken in the shrinker. This will cause a lockdep splat, as can be seen below: <4>[ 462.585762] == <4>[ 462.585768] WARNING: possible circular locking

[Intel-gfx] [PATCH 2/2] drm/i915: Use trylock in shrinker for ggtt on bsw vt-d and bxt.

The stop_machine() lock may allocate memory, but is called inside vm->mutex, which is taken in the shrinker. This will cause a lockdep splat, as can be seen below: <4>[ 462.585762] == <4>[ 462.585768] WARNING: possible circular locking