RFR: 8333522: JFR SwapSpace event might read wrong free swap space size

[Severin Gehwolf]

On Thu, 6 Jun 2024 09:23:03 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> In some cgroups v2 based test system , a too large free swap space value has been observed.
> The value should not be larger than total swap space.

I see that if `sysinfo()` fails the return value might be negative. Should be account for that?

-------------

PR Review: https://git.openjdk.org/jdk/pull/19574#pullrequestreview-2101508368