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| author |   Namhyung Kim <namhyung@kernel.org> | 2022-03-22 11:57:08 -0700 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2022-04-05 10:24:35 +0200 |
| commit | 16edd9b511a13e7760ed4b92ba4e39bacda5c86f (patch) | |
| tree | 00f84f1cf80f93a9ff061d3a40cab7cfeaa03d9d /scripts/generate_rust_analyzer.py | |
| parent | locking/rwsem: Always try to wake waiters in out_nolock path (diff) | |
| download | wireguard-linux-16edd9b511a13e7760ed4b92ba4e39bacda5c86f.tar.xz wireguard-linux-16edd9b511a13e7760ed4b92ba4e39bacda5c86f.zip | |
locking: Add lock contention tracepoints
This adds two new lock contention tracepoints like below:
* lock:contention_begin
* lock:contention_end
The lock:contention_begin takes a flags argument to classify locks. I
found it useful to identify what kind of locks it's tracing like if
it's spinning or sleeping, reader-writer lock, real-time, and per-cpu.
Move tracepoint definitions into mutex.c so that we can use them
without lockdep.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Link: https://lkml.kernel.org/r/20220322185709.141236-2-namhyung@kernel.org
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions