Hi, Here is the 7th version of improvement patches for making persistent ring buffers robust to failures. The previous version is here:
https://lore.kernel.org/all/177218401821.1988514.5579163042147205021.st...@mhiramat.tok.corp.google.com/ In this version, I dropped Handle RB_MISSED_* flags patch and partially include required change to the last one[2/2], it also removes a redundant subbuffer data check in per-cpu metadata validation and do NOT mark RB_MISSED_EVENTS bit on discarded pages. Thank you, --- Masami Hiramatsu (Google) (2): ring-buffer: Flush and stop persistent ring buffer on panic ring-buffer: Skip invalid sub-buffers when validating persistent ring buffer arch/alpha/include/asm/Kbuild | 1 arch/arc/include/asm/Kbuild | 1 arch/arm/include/asm/Kbuild | 1 arch/arm64/include/asm/ring_buffer.h | 10 ++++ arch/csky/include/asm/Kbuild | 1 arch/hexagon/include/asm/Kbuild | 1 arch/loongarch/include/asm/Kbuild | 1 arch/m68k/include/asm/Kbuild | 1 arch/microblaze/include/asm/Kbuild | 1 arch/mips/include/asm/Kbuild | 1 arch/nios2/include/asm/Kbuild | 1 arch/openrisc/include/asm/Kbuild | 1 arch/parisc/include/asm/Kbuild | 1 arch/powerpc/include/asm/Kbuild | 1 arch/riscv/include/asm/Kbuild | 1 arch/s390/include/asm/Kbuild | 1 arch/sh/include/asm/Kbuild | 1 arch/sparc/include/asm/Kbuild | 1 arch/um/include/asm/Kbuild | 1 arch/x86/include/asm/Kbuild | 1 arch/xtensa/include/asm/Kbuild | 1 include/asm-generic/ring_buffer.h | 13 +++++ kernel/trace/ring_buffer.c | 85 ++++++++++++++++++++++------------ 23 files changed, 98 insertions(+), 30 deletions(-) create mode 100644 arch/arm64/include/asm/ring_buffer.h create mode 100644 include/asm-generic/ring_buffer.h -- Masami Hiramatsu (Google) <[email protected]>
