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SubjectRe: [PATCHv2 0/8] hw_breakpoint: Breakpoint modification fixes and new modify ioctl
On Mon, Mar 12, 2018 at 12:20:41PM +0100, Ingo Molnar wrote:

SNIP

> > It's also available in here:
> > https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
> > perf/bp
> >
> > v2 changes:
> > - added check for the rest of the perf_event_attr fields
> > to be the same as for kernel event
> >
> > Jiri Olsa (7):
> > hw_breakpoint: Pass bp_type directly as find_slot_idx argument
> > hw_breakpoint: Pass bp_type argument to __reserve_bp_slot|__release_bp_slot
> > hw_breakpoint: Add modify_bp_slot function
> > hw_breakpoint: Factor out __modify_user_hw_breakpoint function
> > hw_breakpoint: Add perf_event_attr fields check in __modify_user_hw_breakpoint
> > perf/core: Move perf_event_attr::sample_max_stack into perf_copy_attr
> > perf tests: Add breakpoint accounting/modify test
> >
> > Milind Chabbi (1):
> > perf/core: fast breakpoint modification via _IOC_MODIFY_ATTRIBUTES.
> >
> > include/linux/hw_breakpoint.h | 7 +++++
> > include/uapi/linux/perf_event.h | 2 ++
> > kernel/events/core.c | 53 +++++++++++++++++++++++++++++--
> > kernel/events/hw_breakpoint.c | 115 ++++++++++++++++++++++++++++++++++++++++++++++++-------------------
> > tools/include/uapi/linux/perf_event.h | 2 ++
> > tools/perf/tests/Build | 1 +
> > tools/perf/tests/bp_account.c | 195 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > tools/perf/tests/builtin-test.c | 4 +++
> > tools/perf/tests/tests.h | 1 +
> > 9 files changed, 344 insertions(+), 36 deletions(-)
> > create mode 100644 tools/perf/tests/bp_account.c
>
> Sorry about the late response - I suppose we could try this feature, but the
> tooling patches don't apply anymore. Mind re-sending a merged version, on top of
> latest -tip or so?

sure, I'll resend

thanks,
jirka

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