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authorSteven Rostedt <srostedt@redhat.com>2011-03-09 10:41:56 -0500
committerSteven Rostedt <rostedt@goodmis.org>2011-03-10 10:31:48 -0500
commite6e1e2593592a8f6f6380496655d8c6f67431266 (patch)
tree00ef843b23fac5ab6be92725ce5b01487f555997 /kernel/trace/trace_output.c
parentde29be5e712dc8b7eef2bef9417af3bb6a88e47a (diff)
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tracing: Remove lock_depth from event entry
The lock_depth field in the event headers was added as a temporary data point for help in removing the BKL. Now that the BKL is pretty much been removed, we can remove this field. This in turn changes the header from 12 bytes to 8 bytes, removing the 4 byte buffer that gcc would insert if the first field in the data load was 8 bytes in size. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_output.c')
-rw-r--r--kernel/trace/trace_output.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 02272ba..151f32e 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -529,7 +529,7 @@ seq_print_ip_sym(struct trace_seq *s, unsigned long ip, unsigned long sym_flags)
* @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.
+ * count.
*/
int trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry)
{
@@ -554,13 +554,7 @@ int trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry)
else
ret = trace_seq_putc(s, '.');
- if (!ret)
- return 0;
-
- if (entry->lock_depth < 0)
- return trace_seq_putc(s, '.');
-
- return trace_seq_printf(s, "%d", entry->lock_depth);
+ return ret;
}
static int