v3->v4:
1. Rebase the patch
2. Tidy up the commit message
3. Modify the code style

Luo Gengkun (2):
  perf/core: Fix small negative period being ignored
  perf/core: Fix incorrect time diff in tick adjust period

 include/linux/perf_event.h |  1 +
 kernel/events/core.c       | 17 +++++++++++++----
 2 files changed, 14 insertions(+), 4 deletions(-)

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2.34.1