Here are a few changes to minimize calls to stop_machine() and flush_icache_*() in the various text patching functions, as well as to simplify the code. This series is based on "[PATCH v3 0/2] riscv: fix patching with IPI"[1]. [1]: https://lore.kernel.org/linux-riscv/20240229121056.203419-1-alexghiti@xxxxxxxxxxxx/ Changes in v2: - Remove unnecessary line wrapping - Further simplify patch_insn_set()/patch_insn_write() loop conditions - Use min() instead of min_t() since both sides are unsigned long Samuel Holland (7): riscv: jump_label: Batch icache maintenance riscv: jump_label: Simplify assembly syntax riscv: kprobes: Use patch_text_nosync() for insn slots riscv: Simplify text patching loops riscv: Pass patch_text() the length in bytes riscv: Use offset_in_page() in text patching functions riscv: Remove extra variable in patch_text_nosync() arch/riscv/include/asm/jump_label.h | 4 +- arch/riscv/include/asm/patch.h | 2 +- arch/riscv/kernel/jump_label.c | 16 +++++-- arch/riscv/kernel/patch.c | 69 ++++++++++++++--------------- arch/riscv/kernel/probes/kprobes.c | 19 ++++---- arch/riscv/net/bpf_jit_comp64.c | 7 +-- 6 files changed, 63 insertions(+), 54 deletions(-) -- 2.43.1
