[PATCH v3 0/2] riscv: fix patching with IPI

Alexandre Ghiti alexghiti at rivosinc.com
Thu Feb 29 04:10:54 PST 2024


patch 1 removes a useless memory barrier and patch 2 actually fixes the
issue with IPI in the patching code.

Changes in v3:
- Remove wrong cleanup as noted by Samuel
- Enhance comment about usage of release semantics as suggested by
  Andrea
- Add RBs from Andrea

Changes in v2:
- Add patch 1 and then remove the memory barrier from patch 2 as
  suggested by Andrea
- Convert atomic_inc into an atomic_inc with release semantics as
  suggested by Andrea

Alexandre Ghiti (2):
  riscv: Remove superfluous smp_mb()
  riscv: Fix text patching when IPI are used

 arch/riscv/include/asm/patch.h |  1 +
 arch/riscv/kernel/ftrace.c     | 44 ++++++++++++++++++++++++++++++----
 arch/riscv/kernel/patch.c      | 17 +++++++++----
 3 files changed, 53 insertions(+), 9 deletions(-)

-- 
2.39.2




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