On Mon, 24 Sep 2007 13:51:05 +0400 Alexey Dobriyan <[email protected]> wrote:
> static void lock_and_coalesce_cpu_mnt_writer_counts(void)
> {
> int cpu;
> struct mnt_writer *cpu_writer;
>
> for_each_possible_cpu(cpu) {
> cpu_writer = &per_cpu(mnt_writers, cpu);
> spin_lock_nested(&cpu_writer->lock, 42);
> ^^^^
>
> What the heck is going on?
that was some random 2:00AM hack by me to make the warnings go away.
> Given that MAX_LOCKDEP_SUBCLASSES is only 8,
> this reliably turns off lockdep at boot.
that explains why it worked so well.
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