K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2017-05-18T18:35:14.087024Z
K 7
svn:log
V 430
Fix a few uses of kern_yield() in the TTM and the LinuxKPI.

kern_yield(0) effectively causes the calling thread to be rescheduled
immediately since it resets the thread's priority to the highest possible
value. This can cause livelocks when the pattern
"while (!trylock()) kern_yield(0);" is used since the thread holding the
lock may linger on the runqueue for the CPU on which the looping thread is
running.

MFC after:	1 week

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