perf dso: With ref count checking, avoid dso_data holding dso live

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With the dso_data embedded in a dso there is a reference counted
pointer to the dso rather than using container_of with reference count
checking. This data can hold the dso live meaning that no dso__put
ever deletes it. Add a check for this case and close the dso_data when
it happens. There isn't an infinite loop as the dso_data clears the
file descriptor prior to putting on the dso.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250624190326.2038704-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

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Ian Rogers 2025-06-24 12:03:24 -07:00 • committed by Namhyung Kim

parent d1f1810677

commit e793e2c0f1

1 changed files with 4 additions and 0 deletions

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tools/perf/util/dso.c

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