Files
kernel_arpi/kernel
Stephen Dickey 18695a1200 Revert "cgroup/cpuset: Convert cpuset_mutex to percpu_rwsem"
This reverts commit 1243dc518c.

percpu_rwsem is an rcu based lock.  Under loaded conditions
this lock will require that each cpu perform a switch, causing
exessive delays with long-running tasks on those CPUs.

In the case of hotplug/pause, this can slow down the ability
to activate/deactivate a CPU.

Revert the change from cpuset_mutex to percpu_rwsem, to
eliminate that overhead, and revert to a global lock.

Bug: 161210528
Change-Id: Id00dcaa6d601b561d1321d3e944b6c52e9663f1a
Signed-off-by: Stephen Dickey <dickey@codeaurora.org>
2020-12-08 19:09:45 +00:00
..
2020-09-11 09:33:54 -07:00
2020-08-26 09:10:39 -04:00
2020-08-12 10:58:02 -07:00
2020-11-14 11:26:04 -08:00
2020-07-27 14:31:12 -04:00
2020-10-29 06:32:38 +01:00
2020-09-21 12:13:45 +02:00
2020-06-04 19:06:24 -07:00
2020-07-07 11:58:59 -05:00
2020-05-09 13:57:12 +02:00