Re: [PATCH v4 2/3] perf tool: add PERF_RECORD_NAMESPACES to include namespaces related info

[Jiri Olsa]

On Fri, Dec 16, 2016 at 12:07:20AM +0530, Hari Bathini wrote:

SNIP

> +
> +int thread__set_namespaces(struct thread *thread, u64 timestamp,
> +			   struct namespaces_event *event)
> +{
> +	struct namespaces *new, *curr = thread__namespaces(thread);
> +
> +	new = namespaces__new(event);
> +	if (!new)
> +		return -ENOMEM;
> +
> +	list_add(&new->list, &thread->namespaces_list);
> +
> +	if (timestamp && curr) {
> +		/*
> +		 * setns syscall must have changed few or all the namespaces
> +		 * of this thread. Update end time for the namespaces
> +		 * previously used.
> +		 */
> +		curr = list_next_entry(new, list);
> +		curr->end_time = timestamp;

hi,
couldn't you use just the curr you got from thread__namespaces?
why to retrieve it again via 'new' pointer?

thanks,
jirka