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| author | Jason Low <[email protected]> | 2014-04-28 22:45:54 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2014-05-07 09:51:36 +0000 |
| commit | 0e5b5337f0da073e1f17aec3c322ea7826975d0d (patch) | |
| tree | 3f47f8935bb09d489614f5d86421c84f92a40e73 /drivers/net/xen-netback/interface.c | |
| parent | sched: Skip double execution of pick_next_task_fair() (diff) | |
| download | kernel-0e5b5337f0da073e1f17aec3c322ea7826975d0d.tar.gz kernel-0e5b5337f0da073e1f17aec3c322ea7826975d0d.zip | |
sched: Fix updating rq->max_idle_balance_cost and rq->next_balance in idle_balance()
The following commit:
e5fc66119ec9 ("sched: Fix race in idle_balance()")
can potentially cause rq->max_idle_balance_cost to not be updated,
even when load_balance(NEWLY_IDLE) is attempted and the per-sd
max cost value is updated.
Preeti noticed a similar issue with updating rq->next_balance.
In this patch, we fix this by making sure we still check/update those values
even if a task gets enqueued while browsing the domains.
Signed-off-by: Jason Low <[email protected]>
Reviewed-by: Preeti U Murthy <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions