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-rw-r--r--kernel/trace/trace.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 0dd23c5..2238bfd 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3843,14 +3843,14 @@ static const char readme_msg[] =
"\t table using the key(s) and value(s) named, and the value of a\n"
"\t sum called 'hitcount' is incremented. Keys and values\n"
"\t correspond to fields in the event's format description. Keys\n"
- "\t can be any field. Compound keys consisting of up to two\n"
- "\t fields can be specified by the 'keys' keyword. Values must\n"
- "\t correspond to numeric fields. Sort keys consisting of up to\n"
- "\t two fields can be specified using the 'sort' keyword. The\n"
- "\t sort direction can be modified by appending '.descending' or\n"
- "\t '.ascending' to a sort field. The 'size' parameter can be\n"
- "\t used to specify more or fewer than the default 2048 entries\n"
- "\t for the hashtable size.\n\n"
+ "\t can be any field, or the special string 'stacktrace'.\n"
+ "\t Compound keys consisting of up to two fields can be specified\n"
+ "\t by the 'keys' keyword. Values must correspond to numeric\n"
+ "\t fields. Sort keys consisting of up to two fields can be\n"
+ "\t specified using the 'sort' keyword. The sort direction can\n"
+ "\t be modified by appending '.descending' or '.ascending' to a\n"
+ "\t sort field. The 'size' parameter can be used to specify more\n"
+ "\t or fewer than the default 2048 entries for the hashtable size.\n\n"
"\t Reading the 'hist' file for the event will dump the hash\n"
"\t table in its entirety to stdout. The default format used to\n"
"\t display a given field can be modified by appending any of the\n"