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| author | Gautham R Shenoy <ego@in.ibm.com> | 2008-01-25 21:08:02 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-25 21:08:02 +0100 |
| commit | 95402b3829010fe1e208f44e4a158ccade88969a (patch) | |
| tree | 3b9895b47623b4673e3c11121980e5171af76bbe /kernel/cpu.c | |
| parent | 86ef5c9a8edd78e6bf92879f32329d89b2d55b5a (diff) | |
| download | op-kernel-dev-95402b3829010fe1e208f44e4a158ccade88969a.zip op-kernel-dev-95402b3829010fe1e208f44e4a158ccade88969a.tar.gz | |
cpu-hotplug: replace per-subsystem mutexes with get_online_cpus()
This patch converts the known per-subsystem mutexes to get_online_cpus
put_online_cpus. It also eliminates the CPU_LOCK_ACQUIRE and
CPU_LOCK_RELEASE hotplug notification events.
Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index b0c4152..e0d3a4f 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -218,7 +218,6 @@ static int _cpu_down(unsigned int cpu, int tasks_frozen) return -EINVAL; cpu_hotplug_begin(); - raw_notifier_call_chain(&cpu_chain, CPU_LOCK_ACQUIRE, hcpu); err = __raw_notifier_call_chain(&cpu_chain, CPU_DOWN_PREPARE | mod, hcpu, -1, &nr_calls); if (err == NOTIFY_BAD) { @@ -271,7 +270,6 @@ out_thread: out_allowed: set_cpus_allowed(current, old_allowed); out_release: - raw_notifier_call_chain(&cpu_chain, CPU_LOCK_RELEASE, hcpu); cpu_hotplug_done(); return err; } @@ -302,7 +300,6 @@ static int __cpuinit _cpu_up(unsigned int cpu, int tasks_frozen) return -EINVAL; cpu_hotplug_begin(); - raw_notifier_call_chain(&cpu_chain, CPU_LOCK_ACQUIRE, hcpu); ret = __raw_notifier_call_chain(&cpu_chain, CPU_UP_PREPARE | mod, hcpu, -1, &nr_calls); if (ret == NOTIFY_BAD) { @@ -326,7 +323,6 @@ out_notify: if (ret != 0) __raw_notifier_call_chain(&cpu_chain, CPU_UP_CANCELED | mod, hcpu, nr_calls, NULL); - raw_notifier_call_chain(&cpu_chain, CPU_LOCK_RELEASE, hcpu); cpu_hotplug_done(); return ret; |
