linux-kernel - Re: [PATCH v5 07/10] perf record: implement -z,--compression

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Date:   Tue, 5 Mar 2019 13:26:49 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Alexey Budankov <alexey.budankov@...ux.intel.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 07/10] perf record: implement -z,--compression_level=n
 option and compression

On Fri, Mar 01, 2019 at 06:58:32PM +0300, Alexey Budankov wrote:

SNIP

> +static int record__aio_enabled(struct record *rec);
> +
>  static void record__aio_mmap_read_sync(struct record *rec)
>  {
>  	int i;
>  	struct perf_evlist *evlist = rec->evlist;
>  	struct perf_mmap *maps = evlist->mmap;
>  
> -	if (!rec->opts.nr_cblocks)
> +	if (!record__aio_enabled(rec))
>  		return;
>  
>  	for (i = 0; i < evlist->nr_mmaps; i++) {
> @@ -292,13 +294,17 @@ static int record__aio_parse(const struct option *opt,
>  
>  	if (unset) {
>  		opts->nr_cblocks = 0;
> -	} else {
> -		if (str)
> -			opts->nr_cblocks = strtol(str, NULL, 0);
> -		if (!opts->nr_cblocks)
> -			opts->nr_cblocks = nr_cblocks_default;
> +		return 0;
>  	}
>  
> +	if (str)
> +		opts->nr_cblocks = strtol(str, NULL, 0);
> +	if (!opts->nr_cblocks)
> +		opts->nr_cblocks = nr_cblocks_default;
> +
> +	if (opts->nr_cblocks > nr_cblocks_max)
> +		opts->nr_cblocks = nr_cblocks_max;
> +
>  	return 0;

does not seem to be related to the patch, if that's the case please separate

jirka