Re: [PATCH v2 8/9] kernel-shark-qt: Add Advanced filter to the session context.

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On Thu, 28 Jun 2018 19:30:11 +0300
"Yordan Karadzhov (VMware)" <y.karadz@xxxxxxxxx> wrote:

> @@ -306,9 +315,23 @@ void kshark_filter_entries(struct kshark_context *kshark_ctx,
>  			   size_t n_entries)
>  {
>  	int i;

Also add a space here.

> +	if (kshark_ctx->advanced_event_filter->filters) {

Can this be called with kshark_ctx->advanced_event_filter == NULL?

> +		/*
> +		 * The advanced filter is set but applying it requires
> +		 * access to prevent_record, hence the data has to be
> +		 * reloaded.
> +		 */

I'm a little confused by the comment above. So if this is called with
advanced filters, then it is an error?

> +		fprintf(stderr,
> +			"Failed to filter!\n");
> +		fprintf(stderr,
> +			"Reset the Advanced filter or reload the data.\n");
> +		return;
> +	}
> +
>  	if (!kshark_filter_is_set(kshark_ctx))
>  		return;
>  
> +	/* No need to reload the data. Apply the Id filters. */

Why is this comment added here? Would it make sense to add it in the
original patch? Does advanced filters make this different?

-- Steve

>  	for (i = 0; i < n_entries; ++i) {
>  		/* Start with and entry which is visible everywhere. */
>  		data[i]->visible = 0xFF;



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