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From: Frederic Weisbecker on 24 Apr 2010 09:50
On Sat, Apr 24, 2010 at 07:46:41PM +0900, Hitoshi Mitake wrote:
> Hi Frederic,
>
> I added "info" subcommand to perf lock,
> this can be used as dumping metadata like thread or address of lock instances.
> "map" was removed because info should do the work of it.
>
> This will be useful not only for debugging but also for ordinary analyzing.
>
> I made this patch on perf/core of your tree, could you queue this?
>
> v2: adding example of usage
> % sudo ./perf lock info -t
> | Thread ID: comm
> | 0: swapper
> | 1: init
> | 18: migration/5
> | 29: events/2
> | 32: events/5
> | 33: events/6
> ...
>
> % sudo ./perf lock info -m
> | Address of instance: name of class
> | 0xffff8800b95adae0: &(&sighand->siglock)->rlock
> | 0xffff8800bbb41ae0: &(&sighand->siglock)->rlock
> | 0xffff8800bf165ae0: &(&sighand->siglock)->rlock
> | 0xffff8800b9576a98: &p->cred_guard_mutex
> | 0xffff8800bb890a08: &(&p->alloc_lock)->rlock
> | 0xffff8800b9522a08: &(&p->alloc_lock)->rlock
> | 0xffff8800bb8aaa08: &(&p->alloc_lock)->rlock
> | 0xffff8800bba72a08: &(&p->alloc_lock)->rlock
> | 0xffff8800bf18ea08: &(&p->alloc_lock)->rlock
> | 0xffff8800b8a0d8a0: &(&ip->i_lock)->mr_lock
> | 0xffff88009bf818a0: &(&ip->i_lock)->mr_lock
> | 0xffff88004c66b8a0: &(&ip->i_lock)->mr_lock
> | 0xffff8800bb6478a0: &(shost->host_lock)->rlock



Thanks, I queue it for the next pass.

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From: Frederic Weisbecker on 5 May 2010 17:20
On Mon, May 03, 2010 at 02:12:00PM +0900, Hitoshi Mitake wrote:
> Hi Frederic,
>
> I added "info" subcommand to perf lock,
> this can be used as dumping metadata like thread or address of lock instances.
> "map" was removed because info should do the work of it.
>
> This will be useful not only for debugging but also for ordinary analyzing.
>
> I made this patch on perf/core of your tree, could you queue this?
>
> v2: adding example of usage
> % sudo ./perf lock info -t
> | Thread ID: comm
> | 0: swapper
> | 1: init
> | 18: migration/5
> | 29: events/2
> | 32: events/5
> | 33: events/6
> ...
>
> % sudo ./perf lock info -m
> | Address of instance: name of class
> | 0xffff8800b95adae0: &(&sighand->siglock)->rlock
> | 0xffff8800bbb41ae0: &(&sighand->siglock)->rlock
> | 0xffff8800bf165ae0: &(&sighand->siglock)->rlock
> | 0xffff8800b9576a98: &p->cred_guard_mutex
> | 0xffff8800bb890a08: &(&p->alloc_lock)->rlock
> | 0xffff8800b9522a08: &(&p->alloc_lock)->rlock
> | 0xffff8800bb8aaa08: &(&p->alloc_lock)->rlock
> | 0xffff8800bba72a08: &(&p->alloc_lock)->rlock
> | 0xffff8800bf18ea08: &(&p->alloc_lock)->rlock
> | 0xffff8800b8a0d8a0: &(&ip->i_lock)->mr_lock
> | 0xffff88009bf818a0: &(&ip->i_lock)->mr_lock
> | 0xffff88004c66b8a0: &(&ip->i_lock)->mr_lock
> | 0xffff8800bb6478a0: &(shost->host_lock)->rlock
>
> v3: fixed some problems Frederic pointed out
> * better rbtree tracking in dump_threads()
> * removed printf() and used pr_info() and pr_debug()



Applied, thanks Hitoshi!

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