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    Subject[PATCH V2 0/6] Add sample_flags to improve the perf_sample_data struct
    Date
    From: Kan Liang <kan.liang@linux.intel.com>

    Changes since V1:
    - Update the AMD LBR code in patch 3

    The patch series is to fix PEBS timestamps overwritten and improve the
    perf_sample_data struct. The detailed discussion can be found at
    https://lore.kernel.org/lkml/YwXvGe4%2FQdgGYOKJ@worktop.programming.kicks-ass.net/

    The patch series has two changes compared with the suggestions in the
    above discussion.
    - Only clear the sample flags for the perf_prepare_sample().
    The __perf_event_header__init_id is shared between perf_prepare_sample()
    (used by PERF_RECORD_SAMPLE) and perf_event_header__init_id() (used by
    other PERF_RECORD_* event type). The sample data is only available
    for the PERF_RECORD_SAMPLE.
    - The CALLCHAIN_EARLY hack is still required for the BPF, especially
    perf_event_set_bpf_handler(). The sample data is not available when
    the function is invoked.

    Kan Liang (6):
    perf: Add sample_flags to indicate the PMU-filled sample data
    perf/x86/intel/pebs: Fix PEBS timestamps overwritten
    perf: Use sample_flags for branch stack
    perf: Use sample_flags for weight
    perf: Use sample_flags for data_src
    perf: Use sample_flags for txn

    arch/powerpc/perf/core-book3s.c | 10 ++++++---
    arch/x86/events/amd/core.c | 4 +++-
    arch/x86/events/core.c | 4 +++-
    arch/x86/events/intel/core.c | 4 +++-
    arch/x86/events/intel/ds.c | 39 ++++++++++++++++++++++++---------
    include/linux/perf_event.h | 15 ++++++-------
    kernel/events/core.c | 30 ++++++++++++++++++-------
    7 files changed, 74 insertions(+), 32 deletions(-)

    --
    2.35.1

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