lockdep finds out dependency in locking order at runtime. More on this
in kernel documentation linux/Documentation/lockdep-design.txt
Rajat
On Tue, Feb 1, 2011 at 1:57 AM, Sri Ram Vemulpali
<sri.ram.gmu06@xxxxxxxxx> wrote:
> Hi all,
>
> I am reading spinlock code and looking at struct raw_spinlock. I found
> struct lockdep_map as member.
> which is defined as
>
> struct lockdep_map {
> struct lock_class_key *key;
> struct lock_class *class_cache[NR_LOCKDEP_CACHING_CLASSES];
> const char *name;
> #ifdef CONFIG_LOCK_STAT
> int cpu;
> unsigned long ip;
> #endif
> };
>
> Can anyone help me explain, how this struct helps the spinlock. Why do
> we need lockdepth.
> Thanks for help in advance.
> --
> Regards,
> Sri.
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies@xxxxxxxxxxxxxxxxx
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@xxxxxxxxxxxxxxxxx
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
