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-rw-r--r--kernel/trace/ftrace.c4
-rw-r--r--kernel/trace/trace.c2
-rw-r--r--kernel/trace/trace_events.c2
3 files changed, 4 insertions, 4 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 1f3ec2afa511..1e1d23c26308 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1662,7 +1662,7 @@ ftrace_regex_open(struct inode *inode, struct file *file, int enable)
1662 1662
1663 mutex_lock(&ftrace_regex_lock); 1663 mutex_lock(&ftrace_regex_lock);
1664 if ((file->f_mode & FMODE_WRITE) && 1664 if ((file->f_mode & FMODE_WRITE) &&
1665 !(file->f_flags & O_APPEND)) 1665 (file->f_flags & O_TRUNC))
1666 ftrace_filter_reset(enable); 1666 ftrace_filter_reset(enable);
1667 1667
1668 if (file->f_mode & FMODE_READ) { 1668 if (file->f_mode & FMODE_READ) {
@@ -2577,7 +2577,7 @@ ftrace_graph_open(struct inode *inode, struct file *file)
2577 2577
2578 mutex_lock(&graph_lock); 2578 mutex_lock(&graph_lock);
2579 if ((file->f_mode & FMODE_WRITE) && 2579 if ((file->f_mode & FMODE_WRITE) &&
2580 !(file->f_flags & O_APPEND)) { 2580 (file->f_flags & O_TRUNC)) {
2581 ftrace_graph_count = 0; 2581 ftrace_graph_count = 0;
2582 memset(ftrace_graph_funcs, 0, sizeof(ftrace_graph_funcs)); 2582 memset(ftrace_graph_funcs, 0, sizeof(ftrace_graph_funcs));
2583 } 2583 }
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8bc8d8afea6a..d8ef28574aa1 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2031,7 +2031,7 @@ static int tracing_open(struct inode *inode, struct file *file)
2031 2031
2032 /* If this file was open for write, then erase contents */ 2032 /* If this file was open for write, then erase contents */
2033 if ((file->f_mode & FMODE_WRITE) && 2033 if ((file->f_mode & FMODE_WRITE) &&
2034 !(file->f_flags & O_APPEND)) { 2034 (file->f_flags & O_TRUNC)) {
2035 long cpu = (long) inode->i_private; 2035 long cpu = (long) inode->i_private;
2036 2036
2037 if (cpu == TRACE_PIPE_ALL_CPU) 2037 if (cpu == TRACE_PIPE_ALL_CPU)
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 53c8fd376a88..23d2972b22d6 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -376,7 +376,7 @@ ftrace_event_seq_open(struct inode *inode, struct file *file)
376 const struct seq_operations *seq_ops; 376 const struct seq_operations *seq_ops;
377 377
378 if ((file->f_mode & FMODE_WRITE) && 378 if ((file->f_mode & FMODE_WRITE) &&
379 !(file->f_flags & O_APPEND)) 379 (file->f_flags & O_TRUNC))
380 ftrace_clear_events(); 380 ftrace_clear_events();
381 381
382 seq_ops = inode->i_private; 382 seq_ops = inode->i_private;