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author | Paul Turner <pjt@google.com> | 2010-12-16 04:10:17 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-12-19 16:36:22 +0100 |
commit | 43365bd7ff37979d2afdccbe953299ed64a4649b (patch) | |
tree | b90aa8813d0f92cae88bc26604e48dea0ee9f87d /kernel/sched_stats.h | |
parent | Merge commit 'v2.6.37-rc6' into sched/core (diff) | |
download | linux-43365bd7ff37979d2afdccbe953299ed64a4649b.tar.xz linux-43365bd7ff37979d2afdccbe953299ed64a4649b.zip |
sched: Move periodic share updates to entity_tick()
Long running entities that do not block (dequeue) require periodic updates to
maintain accurate share values. (Note: group entities with several threads are
quite likely to be non-blocking in many circumstances).
By virtue of being long-running however, we will see entity ticks (otherwise
the required update occurs in dequeue/put and we are done). Thus we can move
the detection (and associated work) for these updates into the periodic path.
This restores the 'atomicity' of update_curr() with respect to accounting.
Signed-off-by: Paul Turner <pjt@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20101216031038.067028969@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_stats.h')
0 files changed, 0 insertions, 0 deletions