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| author | Paul E. McKenney <paul.mckenney@linaro.org> | 2012-02-24 02:13:19 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-04-25 05:55:19 +0200 |
| commit | 2ee3dc80660ac8285a37e662fd91b2e45c46f06a (patch) | |
| tree | d6fcd186eabf672b7bc54bd2f04f1f7956f8afe1 /kernel/rcutree.c | |
| parent | rcu: Add RCU_FAST_NO_HZ tracing for idle exit (diff) | |
| download | linux-2ee3dc80660ac8285a37e662fd91b2e45c46f06a.tar.xz linux-2ee3dc80660ac8285a37e662fd91b2e45c46f06a.zip | |
rcu: Make RCU_FAST_NO_HZ use timer rather than hrtimer
The RCU_FAST_NO_HZ facility uses an hrtimer to wake up a CPU when
it is allowed to go into dyntick-idle mode, which is almost always
cancelled soon after. This is not what hrtimers are good at, so
this commit switches to the timer wheel.
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutree.c')
0 files changed, 0 insertions, 0 deletions