ring-buffer: Making persistent ring buffers robust

Hi,

Here is the 11th version of improvement patches for making persistent
ring buffers robust to failures.
The previous version is here:

https://lore.kernel.org/linux-trace-kernel/177374017536.2...

In this version, I updated [2/5] to do nothing by default since
flush_cache_vmap() does nothing on x86 but it can cause deadlock on
some architectures via on_each_cpu(), because other CPUs will be
stoppped when panic notifier is called.
Also update typo in [3/5], and fix to reset timestamp when invalid
whole ring buffer and skip pages which has invalid "timestamp"
instead of invalidating all ring buffers.

Thank you,

---

Masami Hiramatsu (Google) (5):
      ring-buffer: Fix to update per-subbuf entries of persistent ring buffer
      ring-buffer: Flush and stop persistent ring buffer on panic
      ring-buffer: Skip invalid sub-buffers when validating persistent ring buffer
      ring-buffer: Skip invalid sub-buffers when rewinding persistent ring buffer
      ring-buffer: Add persistent ring buffer selftest


 0 files changed

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Masami Hiramatsu (Google) <mhiramat@kernel.org>