Use sched_yield instead of pthread_yield

Despite the name implying it's a standard part of the POSIX threads API,
pthread_yield is actually non-standard and less portable than sched_yield.
For instance, Solaris only has sched_yield, and not pthread_yield.
Since even the Linux man page suggests using sched_yield, just call that.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1 file changed