* [RFC] perf bench: Adjusting concerns around asynchronous-signal-safety?
@ 2024-07-22 9:44 Markus Elfring
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From: Markus Elfring @ 2024-07-22 9:44 UTC (permalink / raw)
To: linux-perf-users, kernel-janitors, Adrian Hunter,
Alexander Shishkin, Arnaldo Carvalho de Melo, Athira Rajeev,
Ian Rogers, Ingo Molnar, James Clark, Jiri Olsa, Kan Liang,
Mark Rutland, Namhyung Kim, Peter Zijlstra
Cc: LKML
Hello,
The functions “gettimeofday” and “timersub” are called within the signal
handler “toggle_done” so far.
https://elixir.bootlin.com/linux/v6.10/source/tools/perf/bench/epoll-ctl.c#L90
Do such implementation details trigger any programming concerns according to
asynchronous-signal-safety?
https://wiki.sei.cmu.edu/confluence/display/c/SIG30-C.+Call+only+asynchronous-safe+functions+within+signal+handlers
Regards,
Markus
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