From: Chris Wilson Date: Tue, 19 Nov 2019 16:25:58 +0000 (+0000) Subject: drm/i915/gt: Move new timelines to the end of active_list X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=1683d24c1470;p=uclinux-h8%2Flinux.git drm/i915/gt: Move new timelines to the end of active_list When adding a new active timeline, place it at the end of the list. This allows for intel_gt_retire_requests() to pick up the newcomer more quickly and hopefully complete the retirement sooner. A miniscule optimisation. References: 7936a22dd466 ("drm/i915/gt: Wait for new requests in intel_gt_retire_requests()") Signed-off-by: Chris Wilson Cc: Tvrtko Ursulin Reviewed-by: Tvrtko Ursulin Link: https://patchwork.freedesktop.org/patch/msgid/20191119162559.3313003-1-chris@chris-wilson.co.uk --- diff --git a/drivers/gpu/drm/i915/gt/intel_timeline.c b/drivers/gpu/drm/i915/gt/intel_timeline.c index 16a9e88d93de..0e277835aad0 100644 --- a/drivers/gpu/drm/i915/gt/intel_timeline.c +++ b/drivers/gpu/drm/i915/gt/intel_timeline.c @@ -342,7 +342,7 @@ void intel_timeline_enter(struct intel_timeline *tl) GEM_BUG_ON(!tl->active_count); /* overflow? */ spin_lock_irqsave(&timelines->lock, flags); - list_add(&tl->link, &timelines->active_list); + list_add_tail(&tl->link, &timelines->active_list); spin_unlock_irqrestore(&timelines->lock, flags); }