On Fri, 21 Feb 2025 18:44:23 -0800 Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> wrote: > Tracing BPF programs execute from tracepoints and kprobes where > running context is unknown, but they need to request additional > memory. The prior workarounds were using pre-allocated memory and > BPF specific freelists to satisfy such allocation requests. The "prior workarounds" sound entirely appropriate. Because the performance and maintainability of Linux's page allocator is about 1,000,040 times more important than relieving BPF of having to carry a "workaround". IOW, I don't see any way in which this patchset even remotely meets any sane cost/benefit comparison. Feel free to explain why I am wrong, in great detail?
