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Subject[PATCH] trace:add "gfp_t" support in synthetic_events
Date
Add "gfp_t" support in synthetic_events, then the "gfp_t" type
parameter in some functions can be traced.

Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
---
kernel/trace/trace_events_hist.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index ca6b0dff60c5..0d3ab01b7cb5 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -752,6 +752,8 @@ static int synth_field_size(char *type)
size = sizeof(unsigned long);
else if (strcmp(type, "pid_t") == 0)
size = sizeof(pid_t);
+ else if (strcmp(type, "gfp_t") == 0)
+ size = sizeof(gfp_t);
else if (synth_field_is_string(type))
size = synth_field_string_size(type);

@@ -792,6 +794,8 @@ static const char *synth_field_fmt(char *type)
fmt = "%lu";
else if (strcmp(type, "pid_t") == 0)
fmt = "%d";
+ else if (strcmp(type, "gfp_t") == 0)
+ fmt = "%u";
else if (synth_field_is_string(type))
fmt = "%s";

--
2.14.1
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