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author | Brendan Jackman <brendan.jackman@arm.com> | 2017-06-29 17:29:31 +0100 |
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committer | Chris Redpath <chris.redpath@arm.com> | 2017-07-25 16:31:00 +0100 |
commit | d96e40472807e08d8352d22c0d3b0ce142893c53 (patch) | |
tree | 59ac401a9b6c98d6a93716b7b778600cd35fbff3 /fs/debugfs/inode.c | |
parent | e76348ec5f7f4e37f827cfcee2ead8c1089912c4 (diff) |
sched/fair: Sync task util before EAS wakeup
Before using a task's util_avg signal in EAS, we need to ensure that
it has been synced up to the last_update_time of prev_cpu's root
cfs_rq.
We previously relied on the side effect of wake_cap to do that,
however that does not happen when the waking CPU has the same
capacity as the prev_cpu. Therefore just explicitly call
sync_entity_load_avg. This may result in calling that function twice
within the same select_task_rq_fair, but since last_update_time
hasn't changed the second call will bail out very quickly.
Change-Id: I91f1fcd71dfeb96b7f5b73418f1cf9ac311d4655
Signed-off-by: Brendan Jackman <brendan.jackman@arm.com>
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Diffstat (limited to 'fs/debugfs/inode.c')
0 files changed, 0 insertions, 0 deletions