9d2ad24306f2fafc3612e5a216aab31f9e56e879 - arm/linux

commit	9d2ad24306f2fafc3612e5a216aab31f9e56e879	[log] [tgz]
author	Paul E. McKenney <paul.mckenney@linaro.org>	Sun Jun 24 10:15:02 2012 -0700
committer	Paul E. McKenney <paulmck@linux.vnet.ibm.com>	Mon Jul 02 12:34:43 2012 -0700
tree	6ced8145e842e29aaedda3d9453c74b6f0c92b4f
parent	4fa3b6cb1bc8c14b81b4c8ffdfd3f2500a7e9367 [diff]

rcu: Make RCU_FAST_NO_HZ respect nohz= boot parameter

If the nohz= boot parameter disables nohz, then RCU_FAST_NO_HZ needs to
also disable itself.  This commit therefore checks for tick_nohz_enabled
being zero, disabling rcu_prepare_for_idle() if so.  This commit assumes
that tick_nohz_enabled can change at runtime: If this is not the case,
then a simpler approach suffices.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

kernel/rcutree.h[diff]
kernel/rcutree_plugin.h[diff]
kernel/time/tick-sched.c[diff]

3 files changed

tree: 6ced8145e842e29aaedda3d9453c74b6f0c92b4f