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Merge branch 'hwpoison-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6

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* 'hwpoison-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6:
  HWPOISON: fix invalid page count in printk output
  HWPOISON: Allow schedule_on_each_cpu() from keventd
  HWPOISON: fix/proc/meminfo alignment
  HWPOISON: fix oops on ksm pages
  HWPOISON: Fix page count leak in hwpoison late kill in do_swap_page
  HWPOISON: return early on non-LRU pages
  HWPOISON: Add brief hwpoison description to Documentation
  HWPOISON: Clean up PR_MCE_KILL interface
This commit is contained in:
Linus Torvalds 2009-10-29 08:20:00 -07:00
commit 3242f9804b
6 changed files with 216 additions and 35 deletions
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21
kernel/workqueue.c
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@ -685,21 +685,38 @@ EXPORT_SYMBOL(schedule_delayed_work_on);
int schedule_on_each_cpu(work_func_t func)
{
int cpu;
int orig = -1;
struct work_struct *works;
works = alloc_percpu(struct work_struct);
if (!works)
return -ENOMEM;
/*
* when running in keventd don't schedule a work item on itself.
* Can just call directly because the work queue is already bound.
* This also is faster.
* Make this a generic parameter for other workqueues?
*/
if (current_is_keventd()) {
orig = raw_smp_processor_id();
INIT_WORK(per_cpu_ptr(works, orig), func);
func(per_cpu_ptr(works, orig));
}
get_online_cpus();
for_each_online_cpu(cpu) {
struct work_struct *work = per_cpu_ptr(works, cpu);
if (cpu == orig)
continue;
INIT_WORK(work, func);
schedule_work_on(cpu, work);
}
for_each_online_cpu(cpu)
flush_work(per_cpu_ptr(works, cpu));
for_each_online_cpu(cpu) {
if (cpu != orig)
flush_work(per_cpu_ptr(works, cpu));
}
put_online_cpus();
free_percpu(works);
return 0;