Commits
Chris Wilson committed 2467658e2de
drm/i915: Introduce i915_gem_active_wait_unlocked() It is useful to be able to wait on pending rendering without grabbing the struct_mutex. We can do this by using the i915_gem_active_get_rcu() primitive to acquire a reference to the pending request without requiring struct_mutex, just the RCU read lock, and then call i915_wait_request(). v2: Rebase onto new i915_gem_active_get_unlocked() semantics that take the RCU read lock on behalf of the caller. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1470388464-28458-1-git-send-email-chris@chris-wilson.co.uk