Commit 07c13bb7 authored Jun 14, 2018 by Thomas Hellstrom

drm: Change deadlock-avoidance algorithm for the modeset locks.



For modeset locks we don't expect a high number of contending
transactions so change algorithm from Wait-Die to Wound-Wait.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Ingo Molnar <mingo@kernel.org>

parent 08295b3b

drivers/gpu/drm/drm_modeset_lock.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -70,7 +70,7 @@
		* lists and lookup data structures.
		*/

		static DEFINE_WD_CLASS(crtc_ww_class);
		static DEFINE_WW_CLASS(crtc_ww_class);

		/**
		* drm_modeset_lock_all - take all modeset locks