diff options
| author | Robert Richter <robert.richter@amd.com> | 2010-10-25 16:28:14 +0200 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2010-10-25 16:29:12 +0200 |
| commit | dbd1e66e04558a582e673bc4a9cd933ce0228d93 (patch) | |
| tree | 85f3633276282cde0a3ac558d988704eaa3e68af /kernel/stop_machine.c | |
| parent | 328b8f1ba50b708a1b3c0acd7c41ee1b356822f6 (diff) | |
| parent | 4a60cfa9457749f7987fd4f3c956dbba5a281129 (diff) | |
Merge commit 'linux-2.6/master' (early part) into oprofile/core
This branch depends on these apic patches:
apic, x86: Use BIOS settings for IBS and MCE threshold interrupt LVT offsets
apic, x86: Check if EILVT APIC registers are available (AMD only)
Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'kernel/stop_machine.c')
| -rw-r--r-- | kernel/stop_machine.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c index 4372ccb2512..090c28812ce 100644 --- a/kernel/stop_machine.c +++ b/kernel/stop_machine.c @@ -287,11 +287,12 @@ repeat: goto repeat; } +extern void sched_set_stop_task(int cpu, struct task_struct *stop); + /* manage stopper for a cpu, mostly lifted from sched migration thread mgmt */ static int __cpuinit cpu_stop_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu) { - struct sched_param param = { .sched_priority = MAX_RT_PRIO - 1 }; unsigned int cpu = (unsigned long)hcpu; struct cpu_stopper *stopper = &per_cpu(cpu_stopper, cpu); struct task_struct *p; @@ -304,13 +305,13 @@ static int __cpuinit cpu_stop_cpu_callback(struct notifier_block *nfb, cpu); if (IS_ERR(p)) return NOTIFY_BAD; - sched_setscheduler_nocheck(p, SCHED_FIFO, ¶m); get_task_struct(p); + kthread_bind(p, cpu); + sched_set_stop_task(cpu, p); stopper->thread = p; break; case CPU_ONLINE: - kthread_bind(stopper->thread, cpu); /* strictly unnecessary, as first user will wake it */ wake_up_process(stopper->thread); /* mark enabled */ @@ -325,6 +326,7 @@ static int __cpuinit cpu_stop_cpu_callback(struct notifier_block *nfb, { struct cpu_stop_work *work; + sched_set_stop_task(cpu, NULL); /* kill the stopper */ kthread_stop(stopper->thread); /* drain remaining works */ |