[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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