#!/bin/sh # description: Kprobe dynamic event with function tracer [ -f kprobe_events ] || exit_unsupported # this is configurable grep function available_tracers || exit_unsupported # this is configurable # prepare echo nop > current_tracer echo _do_fork > set_ftrace_filter echo 0 > events/enable echo > kprobe_events echo 'p:testprobe _do_fork' > kprobe_events # kprobe on / ftrace off echo 1 > events/kprobes/testprobe/enable echo > trace ( echo "forked") grep testprobe trace ! grep '_do_fork <-' trace # kprobe on / ftrace on echo function > current_tracer echo > trace ( echo "forked") grep testprobe trace grep '_do_fork <-' trace # kprobe off / ftrace on echo 0 > events/kprobes/testprobe/enable echo > trace ( echo "forked") ! grep testprobe trace grep '_do_fork <-' trace # kprobe on / ftrace on echo 1 > events/kprobes/testprobe/enable echo function > current_tracer echo > trace ( echo "forked") grep testprobe trace grep '_do_fork <-' trace # kprobe on / ftrace off echo nop > current_tracer echo > trace ( echo "forked") grep testprobe trace ! grep '_do_fork <-' trace # cleanup echo nop > current_tracer echo > set_ftrace_filter echo 0 > events/kprobes/testprobe/enable echo > kprobe_events echo > trace te-remove net-next plumbingsTobias Klauser
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-18 11:13:41 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-18 11:13:41 -0800
commitca92e6c7e6329029d7188487a5c32e86ef471977 (patch)
tree704fb5c2ca533cdb569826522eed0dbbcf31f316 /sound/soc/nuc900
parent0b75f821ec8be459dd4dec77be39595d989d77ac (diff)
parent4205e4786d0b9fc3b4fec7b1910cf645a0468307 (diff)
Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP hotplug update from Thomas Gleixner: "This contains a trivial typo fix and an extension to the core code for dynamically allocating states in the prepare stage. The extension is necessary right now because we need a proper way to unbreak LTTNG, which iscurrently non functional due to the removal of the notifiers. Surely it's out of tree, but it's widely used by distros. The simple solution would have been to reserve a state for LTTNG, but I'm not fond about unused crap in the kernel and the dynamic range, which we admittedly should have done right away, allows us to remove quite some of the hardcoded states, i.e. those which have no ordering requirements. So doing the right thing now is better than having an smaller intermediate solution which needs to be reworked anyway" * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: cpu/hotplug: Provide dynamic range for prepare stage perf/x86/amd/ibs: Fix typo after cleanup state names in cpu/hotplug
Diffstat (limited to 'sound/soc/nuc900')