Re: [PATCH v2] perf lock contention: Allow 'mmap_lock' in -L/--lock-filter

[Namhyung Kim]

On Thu, Jun 04, 2026 at 11:07:20AM -0300, Arnaldo Carvalho de Melo wrote:
> On Tue, May 05, 2026 at 04:11:35PM -0700, Namhyung Kim wrote:
> > The -L/--lock-filter option is to specify target locks by name or
> > address.  It's basically for global locks where name or address is known
> > and fixed.  But 'mmap_lock' is a per-process lock so it cannot be used
> > for the -L option.
> > 
> >   $ sudo perf lock con -ab -L mmap_lock
> >   ignore unknown symbol: mmap_lock
> >   libbpf: map 'addr_filter': failed to create: -EINVAL
> >   libbpf: failed to load BPF skeleton 'lock_contention_bpf': -EINVAL
> >   Failed to load lock-contention BPF skeleton
> >   lock contention BPF setup failed
> 
> Hi,
> 
> 	Did this fell thru the cracks? :-)
 
Will check and send v3 soon.

Thanks,
Namhyung