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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-06-25 00:20:08 +0300
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-07-18 00:58:48 +0300
commit385b73c06f6a733547d0a7714d0c4cb4c8788b88 (patch)
treee3131e0f720dc99d764ea23c50c80dee1f05e796 /tools/perf/util/scripting-engines/trace-event-python.c
parentd6ada2cf2f81dab8a231d0ef8fb5dec4f5ac8379 (diff)
downloadlinux-385b73c06f6a733547d0a7714d0c4cb4c8788b88.tar.xz
rcu: Get rid of synchronize_sched_expedited()'s polling loop
This commit gets rid of synchronize_sched_expedited()'s mutex_trylock() polling loop in favor of a funnel-locking scheme based on the rcu_node tree. The work-done check is done at each level of the tree, allowing high-contention situations to be resolved quickly with reasonable levels of mutex contention. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
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