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| author |  Yong Zhang <yong.zhang0@gmail.com>
| 2011-02-20 15:08:14 +0800 |
|---|---|---|
| committer |  Ingo Molnar <mingo@elte.hu>
| 2011-02-23 11:33:59 +0100 |
| commit | 800d4d30c8f20bd728e5741a3b77c4859a613f7c (patch) | |
| tree | 1eb329fb8a1dce1c1432c07e19494a3e1fb68499 /kernel/sched | |
| parent | sched, autogroup, sysctl: Use proc_dointvec_minmax() instead (diff) | |
| download | linux-800d4d30c8f2.tar.gz linux-800d4d30c8f2.tar.bz2 linux-800d4d30c8f2.zip | |
sched, autogroup: Stop going ahead if autogroup is disabled
when autogroup is disable from the beginning,
sched_autogroup_create_attach()
autogroup_move_group() <== 1
sched_move_task() <== 2
task_move_group_fair()
set_task_rq()
task_group()
autogroup_task_group()
We go the whole path without doing anything useful.
Then stop going further if autogroup is disabled.
But there will be a race window between 1 and 2, in which
sysctl_sched_autogroup_enabled is enabled. This issue
will be toke by following patch.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1298185696-4403-4-git-send-email-yong.zhang0@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched')
0 files changed, 0 insertions, 0 deletions