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| author | Xiaotian Feng <dfeng@redhat.com> | 2009-12-16 18:04:32 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-12-16 19:01:53 +0100 |
| commit | 9ee349ad6d326df3633d43f54202427295999c47 (patch) | |
| tree | 06f4795cb1b3f493b2421b65af0fd870875c8168 /kernel/sched.c | |
| parent | 933b0618d8b2a59c7a0742e43836544e02f1e9bd (diff) | |
| download | op-kernel-dev-9ee349ad6d326df3633d43f54202427295999c47.zip op-kernel-dev-9ee349ad6d326df3633d43f54202427295999c47.tar.gz | |
sched: Fix set_cpu_active() in cpu_down()
Sachin found cpu hotplug test failures on powerpc, which made
the kernel hang on his POWER box.
The problem is that we fail to re-activate a cpu when a
hot-unplug fails. Fix this by moving the de-activation into
_cpu_down after doing the initial checks.
Remove the synchronize_sched() calls and rely on those implied
by rebuilding the sched domains using the new mask.
Reported-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Xiaotian Feng <dfeng@redhat.com>
Tested-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <20091216170517.500272612@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched.c')
0 files changed, 0 insertions, 0 deletions
