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List: linux-btrace
Subject: [RFC PATCH 33/39] blktrace: add trace print helpers
From: Chaitanya Kulkarni <chaitanya.kulkarni () wdc ! com>
Date: 2020-08-25 22:10:03
Message-ID: 20200825221009.6457-34-chaitanya.kulkarni () wdc ! com
[Download RAW message or body]
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
kernel/trace/blktrace.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 9c2f707b1f59..feca0a245a14 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -2531,6 +2531,15 @@ 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))
@@ -2539,6 +2548,14 @@ 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
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