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authorSteven Rostedt <srostedt@redhat.com>2009-09-11 14:24:13 -0400
committerSteven Rostedt <rostedt@goodmis.org>2009-09-11 14:24:13 -0400
commitf81c972d27c36729e65d4a815e3d7b782a540bad (patch)
treecc3ad7478f09e47914ffa9b5b9d9c1a7b990c60b /kernel/trace/trace_output.c
parent637e7e864103a7a68c1ce43ada27dfc25c0d113f (diff)
downloadblackbird-op-linux-f81c972d27c36729e65d4a815e3d7b782a540bad.tar.gz
blackbird-op-linux-f81c972d27c36729e65d4a815e3d7b782a540bad.zip
tracing: consolidate code between trace_output.c and trace_function_graph.c
Both trace_output.c and trace_function_graph.c do basically the same thing to handle the printing of the latency-format. This patch moves the code into one function that both can use. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_output.c')
-rw-r--r--kernel/trace/trace_output.c30
1 files changed, 24 insertions, 6 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 29a370a45582..f572f44c6e1e 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -460,19 +460,23 @@ seq_print_ip_sym(struct trace_seq *s, unsigned long ip, unsigned long sym_flags)
return ret;
}
-static int
-lat_print_generic(struct trace_seq *s, struct trace_entry *entry, int cpu)
+/**
+ * trace_print_lat_fmt - print the irq, preempt and lockdep fields
+ * @s: trace seq struct to write to
+ * @entry: The trace entry field from the ring buffer
+ *
+ * Prints the generic fields of irqs off, in hard or softirq, preempt
+ * count and lock depth.
+ */
+int trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry)
{
int hardirq, softirq;
- char comm[TASK_COMM_LEN];
int ret;
- trace_find_cmdline(entry->pid, comm);
hardirq = entry->flags & TRACE_FLAG_HARDIRQ;
softirq = entry->flags & TRACE_FLAG_SOFTIRQ;
- if (!trace_seq_printf(s, "%8.8s-%-5d %3d%c%c%c",
- comm, entry->pid, cpu,
+ if (!trace_seq_printf(s, "%c%c%c",
(entry->flags & TRACE_FLAG_IRQS_OFF) ? 'd' :
(entry->flags & TRACE_FLAG_IRQS_NOSUPPORT) ?
'X' : '.',
@@ -494,6 +498,20 @@ lat_print_generic(struct trace_seq *s, struct trace_entry *entry, int cpu)
return trace_seq_putc(s, '.');
}
+static int
+lat_print_generic(struct trace_seq *s, struct trace_entry *entry, int cpu)
+{
+ char comm[TASK_COMM_LEN];
+
+ trace_find_cmdline(entry->pid, comm);
+
+ if (!trace_seq_printf(s, "%8.8s-%-5d %3d",
+ comm, entry->pid, cpu))
+ return 0;
+
+ return trace_print_lat_fmt(s, entry);
+}
+
static unsigned long preempt_mark_thresh = 100;
static int
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