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perf data: Allow to use given fd in data->file.fd

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When in PIPE mode, allow to use fd dynamically opened and asigned to
data->file.fd instead of STDIN_FILENO or STDOUT_FILENO.

Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Weilin Wang <weilin.wang@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Samantha Alt <samantha.alt@intel.com>
Link: https://lore.kernel.org/r/20240720062102.444578-3-weilin.wang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Weilin Wang 2024-07-20 02:20:55 -04:00 committed by Arnaldo Carvalho de Melo
parent 807746b9bd
commit a9a4ca5767
1 changed files with 6 additions and 1 deletions
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7
tools/perf/util/data.c
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@ -204,7 +204,12 @@ static bool check_pipe(struct perf_data *data)
data->file.fd = fd;
data->use_stdio = false;
}
} else {
/*
* When is_pipe and data->file.fd is given, use given fd
* instead of STDIN_FILENO or STDOUT_FILENO
*/
} else if (data->file.fd <= 0) {
data->file.fd = fd;
}
}