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| author | Olav Haugan <ohaugan@codeaurora.org> | 2015-08-05 08:45:21 -0700 |
|---|---|---|
| committer | Joel Fernandes <joelaf@google.com> | 2017-10-16 21:07:06 +0000 |
| commit | ec888d46d8993b2bf205ed375e538a3819c23659 (patch) | |
| tree | f9c51f9e229d996e17a137f4715020acdb2f3395 /include/linux/compiler-clang.h | |
| parent | 8526e9f06400ad95647c78617439216edf18977b (diff) | |
sched: Update task->on_rq when tasks are moving between runqueues
Task->on_rq has three states:
0 - Task is not on runqueue (rq)
1 (TASK_ON_RQ_QUEUED) - Task is on rq
2 (TASK_ON_RQ_MIGRATING) - Task is on rq but in the
process of being migrated to another rq
When a task is moving between rqs task->on_rq state should be
TASK_ON_RQ_MIGRATING in order for WALT to account rq's cumulative
runnable average correctly. Without such state marking for all the
classes, WALT's update_history() would try to fixup task's demand
which was never contributed to any of CPUs during migration.
Change-Id: Iced3428f3924fe8ab5d0075698273ead04f12d5b
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
[joonwoop: Reinforced changelog to explain why this is needed by WALT.
Fixed conflicts in deadline.c]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Diffstat (limited to 'include/linux/compiler-clang.h')
0 files changed, 0 insertions, 0 deletions