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os/WaitFor: Use xorg_list_append()

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Currently, we use xorg_list_add(new, head->prev) which is functionaly
equivalent to xorg_list_append(), but with more pointer chasing, so
reduce the strain on the reader and compiler by using the simpler
append().

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2018-04-15 15:40:04 +01:00 committed by Adam Jackson
parent 7437b6dbde
commit 6115d8b40c
1 changed files with 1 additions and 1 deletions
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os/WaitFor.c
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@ -332,7 +332,7 @@ TimerSet(OsTimerPtr timer, int flags, CARD32 millis,
if ((int) (existing->expires - millis) > 0)
break;
/* This even works at the end of the list -- existing->list will be timers */
xorg_list_add(&timer->list, existing->list.prev);
xorg_list_append(&timer->list, &existing->list);
/* Check to see if the timer is ready to run now */
if ((int) (millis - now) <= 0)