Re: [PATCH v1 03/15] perf data: open data directory in read access mode

From: Andi Kleen
Date: Mon Oct 12 2020 - 12:03:46 EST


On Mon, Oct 12, 2020 at 11:55:07AM +0300, Alexey Budankov wrote:
>
> Open files located at data directory in case of read access mode.

Need some rationale. Is this a bug fix? Did the case not matter
before?

>
> Signed-off-by: Alexey Budankov <alexey.budankov@xxxxxxxxxxxxxxx>
> ---
> tools/perf/util/data.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
> index c47aa34fdc0a..6ad61ac6ba67 100644
> --- a/tools/perf/util/data.c
> +++ b/tools/perf/util/data.c
> @@ -321,6 +321,10 @@ static int open_dir(struct perf_data *data)
> return -1;
>
> ret = open_file(data);
> + if (!ret && perf_data__is_dir(data)) {
> + if (perf_data__is_read(data))
> + ret = perf_data__open_dir(data);
> + }
>
> /* Cleanup whatever we managed to create so far. */
> if (ret && perf_data__is_write(data))
> --
> 2.24.1
>
>