Hi Xiaofeng,

On Tue, 16 Mar 2021 20:57:51 +0800
Xiaofeng Cao <[email protected]> wrote:

> change 'immmediately' to 'immediately'
> change 'quiesence' to 'quiescence'
> change 'unneed' to 'unneeded'
> change 'sinec' to 'since
> change 'sefe' to 'safe''
> change 'And' to 'At the'
> change 'buy' to 'but'

Thanks for the fix!

Acked-by: Masami Hiramatsu <[email protected]>



> 
> Signed-off-by: Xiaofeng Cao <[email protected]>
> ---
>  kernel/kprobes.c | 18 +++++++++---------
>  1 file changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/kernel/kprobes.c b/kernel/kprobes.c
> index 745f08fdd7a6..ae3a22d2099b 100644
> --- a/kernel/kprobes.c
> +++ b/kernel/kprobes.c
> @@ -506,7 +506,7 @@ static void do_optimize_kprobes(void)
>       /*
>        * The optimization/unoptimization refers online_cpus via
>        * stop_machine() and cpu-hotplug modifies online_cpus.
> -      * And same time, text_mutex will be held in cpu-hotplug and here.
> +      * At the same time, text_mutex will be held in cpu-hotplug and here.
>        * This combination can cause a deadlock (cpu-hotplug try to lock
>        * text_mutex but stop_machine can not be done because online_cpus
>        * has been changed)
> @@ -592,12 +592,12 @@ static void kprobe_optimizer(struct work_struct *work)
>  
>       /*
>        * Step 1: Unoptimize kprobes and collect cleaned (unused and disarmed)
> -      * kprobes before waiting for quiesence period.
> +      * kprobes before waiting for quiescence period.
>        */
>       do_unoptimize_kprobes();
>  
>       /*
> -      * Step 2: Wait for quiesence period to ensure all potentially
> +      * Step 2: Wait for quiescence period to ensure all potentially
>        * preempted tasks to have normally scheduled. Because optprobe
>        * may modify multiple instructions, there is a chance that Nth
>        * instruction is preempted. In that case, such tasks can return
> @@ -607,10 +607,10 @@ static void kprobe_optimizer(struct work_struct *work)
>        */
>       synchronize_rcu_tasks();
>  
> -     /* Step 3: Optimize kprobes after quiesence period */
> +     /* Step 3: Optimize kprobes after quiescence period */
>       do_optimize_kprobes();
>  
> -     /* Step 4: Free cleaned kprobes after quiesence period */
> +     /* Step 4: Free cleaned kprobes after quiescence period */
>       do_free_cleaned_kprobes();
>  
>       mutex_unlock(&text_mutex);
> @@ -631,7 +631,7 @@ void wait_for_kprobe_optimizer(void)
>       while (!list_empty(&optimizing_list) || 
> !list_empty(&unoptimizing_list)) {
>               mutex_unlock(&kprobe_mutex);
>  
> -             /* this will also make optimizing_work execute immmediately */
> +             /* this will also make optimizing_work execute immediately */
>               flush_delayed_work(&optimizing_work);
>               /* @optimizing_work might not have been queued yet, relax */
>               cpu_relax();
> @@ -1057,7 +1057,7 @@ static int __arm_kprobe_ftrace(struct kprobe *p, struct 
> ftrace_ops *ops,
>  
>  err_ftrace:
>       /*
> -      * At this point, sinec ops is not registered, we should be sefe from
> +      * At this point, since ops is not registered, we should be safe from
>        * registering empty filter.
>        */
>       ftrace_set_filter_ip(ops, (unsigned long)p->addr, 1, 0);
> @@ -1712,7 +1712,7 @@ static struct kprobe *__disable_kprobe(struct kprobe *p)
>                       /*
>                        * If kprobes_all_disarmed is set, orig_p
>                        * should have already been disarmed, so
> -                      * skip unneed disarming process.
> +                      * skip unneeded disarming process.
>                        */
>                       if (!kprobes_all_disarmed) {
>                               ret = disarm_kprobe(orig_p, true);
> @@ -2424,7 +2424,7 @@ static int kprobes_module_callback(struct 
> notifier_block *nb,
>                            within_module_core((unsigned long)p->addr, mod))) {
>                               /*
>                                * The vaddr this probe is installed will soon
> -                              * be vfreed buy not synced to disk. Hence,
> +                              * be vfreed but not synced to disk. Hence,
>                                * disarming the breakpoint isn't needed.
>                                *
>                                * Note, this will also move any optimized 
> probes
> -- 
> 2.25.1
> 


-- 
Masami Hiramatsu <[email protected]>

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