linux-kernel - [PATCH v2 0/2] Add HARDLOCKUP_DETECTOR

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Message-Id: <20250925084806.89715-1-cuiyunhui@bytedance.com>
Date: Thu, 25 Sep 2025 16:48:04 +0800
From: Yunhui Cui <cuiyunhui@...edance.com>
To: akpm@...ux-foundation.org,
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Subject: [PATCH v2 0/2] Add HARDLOCKUP_DETECTOR_PERF support for RISC-V

After discussion [1],[2], hardlockup_perf cannot be completely replaced by
the hardlockup_buddy approach, so this patch is still being submitted. 

v1->v2:
The contents of arch/arm64/watchdog_hld.c are directly consolidated into
kernel/watchdog_perf.c.

Link: https://lore.kernel.org/all/CAD=FV=UEhVCD6JehQi1wor2sSmtTLDyf=37xfo-DOTK1=u1xzA@mail.gmail.com/ [1]
Link: https://lore.kernel.org/all/20250916145122.416128-1-wangjinchao600@gmail.com/ [2]

Yunhui Cui (2):
  watchdog: move arm64 watchdog_hld into common code
  riscv: add HARDLOCKUP_DETECTOR_PERF support

 arch/arm64/kernel/Makefile       |  1 -
 arch/arm64/kernel/watchdog_hld.c | 94 --------------------------------
 arch/riscv/Kconfig               |  3 +
 drivers/perf/arm_pmu.c           |  5 +-
 drivers/perf/riscv_pmu_sbi.c     | 10 ++++
 include/linux/perf/arm_pmu.h     |  2 -
 kernel/watchdog_perf.c           | 81 +++++++++++++++++++++++++++
 7 files changed, 98 insertions(+), 98 deletions(-)
 delete mode 100644 arch/arm64/kernel/watchdog_hld.c

-- 
2.39.5