Re: [PATCH RFC v3 02/12] perf jevents: Add support for system events tables

[Jiri Olsa]

On Thu, May 07, 2020 at 07:57:41PM +0800, John Garry wrote:

SNIP

>  
> +static bool is_sys_dir(char *fname)
> +{
> +	char *pos;
> +
> +	while (true) {
> +		pos = strchr(fname, '/');

would strrchr be faster? also I thought there's something like
basename function that could be usable in here?

jirka

> +
> +		if (!pos) {
> +			if (!strcmp(fname, "sys"))
> +				return true;
> +			return false;
> +		}
> +
> +		fname = pos + 1;
> +	}
> +
> +	return false;
> +}