Re: [PATCH] perf/kprobe: maxactive for fd-based kprobe

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> On Thu, Jun 09, 2022 at 09:29:36PM +0200, Dmitrii Dolgov wrote:
>
> Enable specifying maxactive for fd based kretprobe. This will be useful
> for tracing tools like bcc and bpftrace (see for example discussion [1]).
> Use highest 12 bit (bit 52-63) to allow maximal maxactive of 4095.
>
> The original patch [2] seems to be fallen through the cracks and wasn't
> applied. I've merely rebased the work done by Song Liu and verififed it
> still works.
>
> [1]: https://github.com/iovisor/bpftrace/issues/835
> [2]: https://lore.kernel.org/all/20191007223111.1142454-1-songliubraving@xxxxxx/

I've recently stumbled upon this seemingly lost topic, and wanted to raise it
again. Please let me know if there is a more appropriate way to do so.



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