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Subject[PATCH 0/5] perf core: Support overwrite ring buffer
Date
Previous patch set at [1] has a problem when using hw_breakpoints on
ARM and ARM64. This new version fix that by introducing
is_default_overflow_handler() to replace all '!overflow_handler'
checking.

[1] http://lkml.kernel.org/g/1457322619-170254-1-git-send-email-wangnan0@huawei.com

Wang Nan (5):
perf core: Introduce new ioctl options to pause and resume ring buffer
perf core: Set event's default overflow_handler
perf core: Prepare writing into ring buffer from end
perf core: Add backward attribute to perf event
perf core: Reduce perf event output overhead by new overflow handler

arch/arm/kernel/hw_breakpoint.c | 4 +--
arch/arm64/kernel/hw_breakpoint.c | 4 +--
include/linux/perf_event.h | 32 +++++++++++++++--
include/uapi/linux/perf_event.h | 4 ++-
kernel/events/core.c | 73 +++++++++++++++++++++++++++++++++------
kernel/events/internal.h | 11 ++++++
kernel/events/ring_buffer.c | 63 +++++++++++++++++++++++++++++----
7 files changed, 167 insertions(+), 24 deletions(-)

Cc: He Kuang <hekuang@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
--
1.8.3.4

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