[RFC PATCH 32/39] blktrace: add trace print helpers
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From: Chaitanya Kulkarni <hidden>
Date: 2021-02-25 07:10:04
Also in:
linux-fsdevel
Subsystem:
block layer, the rest, tracing · Maintainers:
Jens Axboe, Linus Torvalds, Steven Rostedt, Masami Hiramatsu
Signed-off-by: Chaitanya Kulkarni <redacted> --- kernel/trace/blktrace.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index a904a800b696..53bba8537294 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c@@ -2440,6 +2440,15 @@ blk_trace_event_print_binary(struct trace_iterator *iter, int flags, return trace_handle_return(&iter->seq); } +static enum print_line_t +blk_trace_event_print_binary_ext(struct trace_iterator *iter, int flags, + struct trace_event *event) +{ + blk_trace_synthesize_old_trace_ext(iter); + + return trace_handle_return(&iter->seq); +} + static enum print_line_t blk_tracer_print_line(struct trace_iterator *iter) { if (!(blk_tracer_flags.val & TRACE_BLK_OPT_CLASSIC))
@@ -2448,6 +2457,14 @@ static enum print_line_t blk_tracer_print_line(struct trace_iterator *iter) return print_one_line(iter, true); } +static enum print_line_t blk_tracer_print_line_ext(struct trace_iterator *iter) +{ + if (!(blk_tracer_flags.val & TRACE_BLK_OPT_CLASSIC)) + return TRACE_TYPE_UNHANDLED; + + return print_one_line_ext(iter, true); +} + static int blk_tracer_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set) {
--
2.22.1