Paul E. McKenney 0742ac3e2f rcu: Make expedited grace periods recheck dyntick idle state
Expedited grace periods check dyntick-idle state, and avoid sending
IPIs to idle CPUs, including those running guest OSes, and, on NOHZ_FULL
kernels, nohz_full CPUs.  However, the kernel has been observed checking
a CPU while it was non-idle, but sending the IPI after it has gone
idle.  This commit therefore rechecks idle state immediately before
sending the IPI, refraining from IPIing CPUs that have since gone idle.

Reported-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-11-14 10:46:31 -08:00
..
2016-10-10 09:29:50 -07:00
2015-11-19 17:51:48 +01:00
2016-01-22 18:04:28 -05:00
2016-04-04 09:46:47 -04:00
2015-11-23 09:44:58 +01:00
2016-08-05 09:00:54 -04:00
2016-02-16 13:04:58 -05:00
2016-05-27 15:26:11 -07:00
2016-03-01 20:36:56 +01:00
2016-10-07 18:46:30 -07:00
2016-09-22 20:00:36 -05:00