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Commit 3499e461 authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt
Browse files

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: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 8ab2b7ef

kernel/trace/ftrace.c

+2 −37
Original line number Diff line number Diff line
@@ -1355,9 +1355,8 @@ static int __init ftrace_dyn_table_alloc(unsigned long num_to_init) 
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 @@ t_next(struct seq_file *m, void *v, loff_t *pos) 
		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 @@ ftrace_avail_open(struct inode *inode, struct file *file) 
	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 @@ static const struct file_operations ftrace_avail_fops = { 
	.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 @@ static __init int ftrace_init_dyn_debugfs(struct dentry *d_tracer) 
	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);