ftrace: Remove failures file
The failures file in the debugfs tracing directory would list the
functions that failed to convert when the old dead ftrace daemon
tried to update code but failed. Since this code is now dead along
with the daemon the failures file is useless. Remove it.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index f199fb2..97b30f8 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1355,9 +1355,8 @@
enum {
FTRACE_ITER_FILTER = (1 << 0),
FTRACE_ITER_NOTRACE = (1 << 1),
- FTRACE_ITER_FAILURES = (1 << 2),
- FTRACE_ITER_PRINTALL = (1 << 3),
- FTRACE_ITER_HASH = (1 << 4),
+ FTRACE_ITER_PRINTALL = (1 << 2),
+ FTRACE_ITER_HASH = (1 << 3),
};
#define FTRACE_BUFF_MAX (KSYM_SYMBOL_LEN+4) /* room for wildcards */
@@ -1487,12 +1486,6 @@
rec = &iter->pg->records[iter->idx++];
if ((rec->flags & FTRACE_FL_FREE) ||
- (!(iter->flags & FTRACE_ITER_FAILURES) &&
- (rec->flags & FTRACE_FL_FAILED)) ||
-
- ((iter->flags & FTRACE_ITER_FAILURES) &&
- !(rec->flags & FTRACE_FL_FAILED)) ||
-
((iter->flags & FTRACE_ITER_FILTER) &&
!(rec->flags & FTRACE_FL_FILTER)) ||
@@ -1633,24 +1626,6 @@
return ret;
}
-static int
-ftrace_failures_open(struct inode *inode, struct file *file)
-{
- int ret;
- struct seq_file *m;
- struct ftrace_iterator *iter;
-
- ret = ftrace_avail_open(inode, file);
- if (!ret) {
- m = file->private_data;
- iter = m->private;
- iter->flags = FTRACE_ITER_FAILURES;
- }
-
- return ret;
-}
-
-
static void ftrace_filter_reset(int enable)
{
struct ftrace_page *pg;
@@ -2448,13 +2423,6 @@
.release = seq_release_private,
};
-static const struct file_operations ftrace_failures_fops = {
- .open = ftrace_failures_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-
static const struct file_operations ftrace_filter_fops = {
.open = ftrace_filter_open,
.read = seq_read,
@@ -2683,9 +2651,6 @@
trace_create_file("available_filter_functions", 0444,
d_tracer, NULL, &ftrace_avail_fops);
- trace_create_file("failures", 0444,
- d_tracer, NULL, &ftrace_failures_fops);
-
trace_create_file("set_ftrace_filter", 0644, d_tracer,
NULL, &ftrace_filter_fops);