[PATCH v2 0/4] Fix queued spinlocks and a bit more

Nicholas Piggin npiggin at gmail.com
Sat May 8 20:14:51 AEST 2021

This didn't seem to send properly, apologies if you get a duplicate.

Patch 1 is the important fix. 2 might fix something, although I haven't
provoked a crash yet.

Patch 3 is a small cleanup, and patch 4 I think is the right thing to do
but these could wait for later.

Since v1:
- Improved comments, changelogs, code style / wrapping.


Nicholas Piggin (4):
  powerpc/pseries: Fix hcall tracing recursion in pv queued spinlocks
  powerpc/pseries: Don't trace hcall tracing wrapper
  powerpc/pseries: use notrace hcall variant for H_CEDE idle
  powerpc/pseries: warn if recursing into the hcall tracing code

 arch/powerpc/include/asm/hvcall.h         |  3 +++
 arch/powerpc/include/asm/paravirt.h       | 22 ++++++++++++++---
 arch/powerpc/include/asm/plpar_wrappers.h |  6 ++++-
 arch/powerpc/platforms/pseries/hvCall.S   | 10 ++++++++
 arch/powerpc/platforms/pseries/lpar.c     | 29 ++++++++++-------------
 5 files changed, 49 insertions(+), 21 deletions(-)


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