Guo Ren 8ec1442953 riscv: patch_text: Fixup last cpu should be master ... These patch_text implementations are using stop_machine_cpuslocked infrastructure with atomic cpu_count. The original idea: When the master CPU patch_text, the others should wait for it. But current implementation is using the first CPU as master, which couldn't guarantee the remaining CPUs are waiting. This patch changes the last CPU as the master to solve the potential risk. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Guo Ren <guoren@kernel.org> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Fixes: 043cb41a85 ("riscv: introduce interfaces to patch kernel code") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2022-04-22 08:29:24 -07:00
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boot	RISC-V Patches for the 5.18 Merge Window, Part 2	2022-04-01 13:31:57 -07:00
configs	RISC-V: K210 defconfigs: Drop redundant MEMBARRIER=n	2022-03-31 17:19:27 -07:00
errata	riscv: errata: alternative: mark vendor_patch_func __initdata	2022-01-09 11:02:46 -08:00
include	RISC-V Patches for the 5.18 Merge Window, Part 2	2022-04-01 13:31:57 -07:00
kernel	riscv: patch_text: Fixup last cpu should be master	2022-04-22 08:29:24 -07:00
kvm	RISC-V: KVM: Implement SBI HSM suspend call	2022-03-11 19:02:39 +05:30
lib	riscv: Fixed misaligned memory access. Fixed pointer comparison.	2022-03-10 10:24:04 -08:00
mm	RISC-V: mm: Fix set_satp_mode() for platform not having Sv57	2022-04-21 15:10:39 -07:00
net	riscv: bpf: Fix eBPF's exception tables	2022-01-19 10:50:02 -08:00
Kbuild	kbuild: use more subdir- for visiting subdirectories while cleaning	2021-10-24 13:49:46 +09:00
Kconfig	RISC-V CPU Idle Support	2022-03-30 16:17:54 -07:00
Kconfig.debug	RISC-V: Remove EARLY_PRINTK support	2018-12-17 10:23:46 -08:00
Kconfig.erratas	riscv: alternative only works on !XIP_KERNEL	2022-03-10 10:05:19 -08:00
Kconfig.socs	RISC-V: cpuidle: fix Kconfig select for RISCV_SBI_CPUIDLE	2022-04-21 15:10:47 -07:00
Makefile	riscv: fix build with binutils 2.38	2022-02-10 09:17:01 -08:00