This patch set implements two speed ups for uprobe/uretprobe runtime execution path for some common scenarios: BPF-only uprobes (patches #1 and #2) and system-wide (non-PID-specific) uprobes (patch #3). Please see individual patches for details. Given I haven't worked with uprobe code before, I'm unfamiliar with conventions in this subsystem, including which kernel tree patches should be sent to. For now I based all the changes on top of bpf-next/master, which is where I tested and benchmarked everything anyways. Please advise what should I use as a base for subsequent revision. Thanks. Andrii Nakryiko (3): uprobes: encapsulate preparation of uprobe args buffer uprobes: prepare uprobe args buffer lazily uprobes: add speculative lockless system-wide uprobe filter check kernel/trace/trace_uprobe.c | 103 ++++++++++++++++++++++-------------- 1 file changed, 63 insertions(+), 40 deletions(-) -- 2.43.0
