On Wed, Sep 02, 2020 at 01:05:49AM +0800, Mathieu Poirier wrote: > On Tue, Sep 01, 2020 at 02:37:40PM +0800, Tingwei Zhang wrote: > > Hi Mathieu, > > > > May I know your comments for this patch set? > > I do not maintain any of these files. > Sorry for my wrong assumption.
> > > > Thanks, > > Tingwei > > > > On Thu, Aug 13, 2020 at 09:45:46AM +0800, Tingwei Zhang wrote: > > > Ftrace has ability to export trace packets to other destination. > > > Currently, only function trace can be exported. This series extends > the > > > support to event trace and trace_maker. STM is one possible > destination to > > > export ftrace. Use separate channel for each CPU to avoid mixing up > > > packets > > > from different CPUs together. > > > > > > Change from v2: > > > Change flag definition to BIT(). (Steven) > > > Add comment in stm_ftrace_write() to clarify it's safe to use > > > smp_processor_id() here since preempt is disabled. (Steven) > > > > > > Change from v1: > > > All changes are suggested by Steven Rostedt. > > > User separate flag to control function trace, event trace and trace > mark. > > > Allocate channels according to num_possible_cpu() dynamically. > > > Move ftrace_exports routines up so all ftrace can use them. > > > > > > Tingwei Zhang (6): > > > stm class: ftrace: change dependency to TRACING > > > tracing: add flag to control different traces > > > tracing: add trace_export support for event trace > > > tracing: add trace_export support for trace_marker > > > stm class: ftrace: enable supported trace export flag > > > stm class: ftrace: use different channel accroding to CPU > > > > > > drivers/hwtracing/stm/Kconfig | 2 +- > > > drivers/hwtracing/stm/ftrace.c | 7 +- > > > include/linux/trace.h | 7 + > > > kernel/trace/trace.c | 270 > ++++++++++++++++++--------------- > > > 4 files changed, 159 insertions(+), 127 deletions(-) > > > > > > -- > > > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora > Forum, > > > a Linux Foundation Collaborative Project > > >
