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Guo Ren 5b58a1b0c8 csky: patch_text: Fixup last cpu should be master 
commit 8c4d16471e upstream.

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.

Fixes: 33e53ae1ce ("csky: Add kprobes supported")
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2022-06-09 10:26:25 +02:00
..
probes csky: patch_text: Fixup last cpu should be master 2022-06-09 10:26:25 +02:00
vdso csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO 2021-02-27 16:35:09 +08:00
Makefile csky: Reconstruct VDSO framework 2021-01-12 09:52:41 +08:00
asm-offsets.c sched,arch: Remove unused TASK_STATE offsets 2021-06-18 11:43:09 +02:00
atomic.S csky: Remove prologue of page fault handler in entry.S 2021-01-12 09:52:40 +08:00
cpu-probe.c csky: Exception handling and mm-fault 2018-10-25 23:36:19 +08:00
entry.S irq: csky: perform irqentry in entry code 2021-10-26 10:13:27 +01:00
ftrace.c ftrace: Cleanup ftrace_dyn_arch_init() 2021-10-08 19:41:39 -04:00
head.S csky: Add memory layout 2.5G(user):1.5G(kernel) 2021-01-12 09:52:40 +08:00
irq.c irq: csky: perform irqentry in entry code 2021-10-26 10:13:27 +01:00
module.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
perf_callchain.c uaccess: fix type mismatch warnings from access_ok() 2022-04-08 13:58:44 +02:00
perf_event.c csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO 2021-02-27 16:35:09 +08:00
perf_regs.c perf/arch: Remove perf_sample_data::regs_user_copy 2020-11-09 18:12:34 +01:00
power.c csky: Library functions 2018-10-26 00:54:24 +08:00
process.c arch: setup PF_IO_WORKER threads like PF_KTHREAD 2021-02-21 17:25:22 -07:00
ptrace.c csky: Fixup regs.sr broken in ptrace 2021-10-16 07:20:12 +08:00
setup.c csky: convert to setup_initial_init_mm() 2021-07-08 11:48:21 -07:00
signal.c uaccess: fix type mismatch warnings from access_ok() 2022-04-08 13:58:44 +02:00
smp.c csky: Use of_get_cpu_hwid() 2021-10-20 13:37:24 -05:00
stacktrace.c sched: Add wrapper for get_wchan() to keep task blocked 2021-10-15 11:25:14 +02:00
syscall.c csky: System Call 2018-10-25 23:36:19 +08:00
syscall_table.c csky: System Call 2018-10-25 23:36:19 +08:00
time.c csky: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-02-23 12:48:55 +08:00
traps.c Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2022-01-17 05:49:30 +02:00
vdso.c csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO 2021-02-27 16:35:09 +08:00
vmlinux.lds.S csky: Add memory layout 2.5G(user):1.5G(kernel) 2021-01-12 09:52:40 +08:00