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authorLinus Torvalds <torvalds@linux-foundation.org>2018-06-06 19:39:18 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-06 19:39:18 -0400
commit5eb6eed7e0fe880dc8de8da203cc888716bbf196 (patch)
tree05a7c83182b34a567c68b35c091cf31200d5ddec /include/linux/ring_buffer.h
parent8b5c6a3a49d9ebc7dc288870b9c56c4f946035d8 (diff)
parent591a033dc17ff6f684b6b6d1d7426e22d178194f (diff)
Merge tag 'trace-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt: "One new feature was added to ftrace, which is the trace_marker now supports triggers. For example: # cd /sys/kernel/debug/tracing # echo 'snapshot' > events/ftrace/print/trigger # echo 'cause snapshot' > trace_marker The rest of the changes are various clean ups and also one stable fix that was added late in the cycle" * tag 'trace-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (21 commits) tracing: Use match_string() instead of open coding it in trace_set_options() branch-check: fix long->int truncation when profiling branches ring-buffer: Fix typo in comment ring-buffer: Fix a bunch of typos in comments tracing/selftest: Add test to test simple snapshot trigger for trace_marker tracing/selftest: Add test to test hist trigger between kernel event and trace_marker tracing/selftest: Add selftests to test trace_marker histogram triggers ftrace/selftest: Fix reset_trigger() to handle triggers with filters ftrace/selftest: Have the reset_trigger code be a bit more careful tracing: Document trace_marker triggers tracing: Allow histogram triggers to access ftrace internal events tracing: Prevent further users of zero size static arrays in trace events tracing: Have zero size length in filter logic be full string tracing: Add trigger file for trace_markers tracefs/ftrace/print tracing: Do not show filter file for ftrace internal events tracing: Add brackets in ftrace event dynamic arrays tracing: Have event_trace_init() called by trace_init_tracefs() tracing: Add __find_event_file() to find event files without restrictions tracing: Do not reference event data in post call triggers tracepoints: Fix the descriptions of tracepoint_probe_register{_prio} ...
Diffstat (limited to 'include/linux/ring_buffer.h')
-rw-r--r--include/linux/ring_buffer.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index a0233edc0718..b72ebdff0b77 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -65,7 +65,7 @@ u64 ring_buffer_event_time_stamp(struct ring_buffer_event *event);
65 65
66/* 66/*
67 * ring_buffer_discard_commit will remove an event that has not 67 * ring_buffer_discard_commit will remove an event that has not
68 * ben committed yet. If this is used, then ring_buffer_unlock_commit 68 * been committed yet. If this is used, then ring_buffer_unlock_commit
69 * must not be called on the discarded event. This function 69 * must not be called on the discarded event. This function
70 * will try to remove the event from the ring buffer completely 70 * will try to remove the event from the ring buffer completely
71 * if another event has not been written after it. 71 * if another event has not been written after it.