perf stat: Close cork_fd when create_perf_stat_counter() failed

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When create_perf_stat_counter() failed, it doesn't close workload.cork_fd
open in evlist__prepare_workload(). This could make too many open file
error while __run_perf_stat() repeats.

Introduce evlist__cancel_workload to close workload.cork_fd and
wait workload.child_pid until exit to clear child process
when create_perf_stat_counter() is failed.

Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
Reviewed-by: James Clark <james.clark@linaro.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: nd@arm.com
Cc: howardchu95@gmail.com
Link: https://lore.kernel.org/r/20240925132022.2650180-2-yeoreum.yun@arm.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

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This commit is contained in:

Levi Yun 2024-09-25 14:20:21 +01:00 • committed by Namhyung Kim

parent f115506d2c

commit e880a70f80

3 changed files with 53 additions and 17 deletions

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50

tools/perf/builtin-stat.c

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19

tools/perf/util/evlist.c

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1

tools/perf/util/evlist.h

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