* [PATCH] Renaming struct trace_buffer to struct array_buffer
@ 2019-12-18 16:47 Jiri Olsa
0 siblings, 0 replies; only message in thread
From: Jiri Olsa @ 2019-12-18 16:47 UTC (permalink / raw)
To: Steven Rostedt
Cc: Peter Zijlstra, Alexei Starovoitov,
Toke Høiland-Jørgensen, Andrii Nakryiko, Jiri Olsa,
Arnaldo Carvalho de Melo, lkml, Networking, bpf, Ingo Molnar,
Namhyung Kim, Alexander Shishkin, Jesper Dangaard Brouer,
Daniel Borkmann, Martin KaFai Lau, Song Liu, Yonghong Song,
Andrii Nakryiko, Quentin Monnet
As part of renaming perf's and ftrace's ring buffers,
to avoid collision with new name for ftrace buffer.
perf's ring_buffer -> perf_buffer
ftrace's ring_buffer -> trace_buffer
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
include/linux/trace_events.h | 2 +-
kernel/trace/trace.c | 42 +++++++++++++++++------------------
kernel/trace/trace.h | 8 +++----
kernel/trace/trace_selftest.c | 4 ++--
4 files changed, 28 insertions(+), 28 deletions(-)
diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index 4c6e15605766..ed5f8ef4b220 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -79,7 +79,7 @@ struct trace_entry {
struct trace_iterator {
struct trace_array *tr;
struct tracer *trace;
- struct trace_buffer *trace_buffer;
+ struct array_buffer *trace_buffer;
void *private;
int cpu_file;
struct mutex mutex;
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 23459d53d576..c320b7833ab2 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -603,7 +603,7 @@ int trace_pid_write(struct trace_pid_list *filtered_pids,
return read;
}
-static u64 buffer_ftrace_now(struct trace_buffer *buf, int cpu)
+static u64 buffer_ftrace_now(struct array_buffer *buf, int cpu)
{
u64 ts;
@@ -1036,9 +1036,9 @@ void *tracing_cond_snapshot_data(struct trace_array *tr)
}
EXPORT_SYMBOL_GPL(tracing_cond_snapshot_data);
-static int resize_buffer_duplicate_size(struct trace_buffer *trace_buf,
- struct trace_buffer *size_buf, int cpu_id);
-static void set_buffer_entries(struct trace_buffer *buf, unsigned long val);
+static int resize_buffer_duplicate_size(struct array_buffer *trace_buf,
+ struct array_buffer *size_buf, int cpu_id);
+static void set_buffer_entries(struct array_buffer *buf, unsigned long val);
int tracing_alloc_snapshot_instance(struct trace_array *tr)
{
@@ -1590,8 +1590,8 @@ void latency_fsnotify(struct trace_array *tr)
static void
__update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu)
{
- struct trace_buffer *trace_buf = &tr->trace_buffer;
- struct trace_buffer *max_buf = &tr->max_buffer;
+ struct array_buffer *trace_buf = &tr->trace_buffer;
+ struct array_buffer *max_buf = &tr->max_buffer;
struct trace_array_cpu *data = per_cpu_ptr(trace_buf->data, cpu);
struct trace_array_cpu *max_data = per_cpu_ptr(max_buf->data, cpu);
@@ -1962,7 +1962,7 @@ int __init register_tracer(struct tracer *type)
return ret;
}
-static void tracing_reset_cpu(struct trace_buffer *buf, int cpu)
+static void tracing_reset_cpu(struct array_buffer *buf, int cpu)
{
struct ring_buffer *buffer = buf->buffer;
@@ -1978,7 +1978,7 @@ static void tracing_reset_cpu(struct trace_buffer *buf, int cpu)
ring_buffer_record_enable(buffer);
}
-void tracing_reset_online_cpus(struct trace_buffer *buf)
+void tracing_reset_online_cpus(struct array_buffer *buf)
{
struct ring_buffer *buffer = buf->buffer;
int cpu;
@@ -3602,7 +3602,7 @@ static void s_stop(struct seq_file *m, void *p)
}
static void
-get_total_entries_cpu(struct trace_buffer *buf, unsigned long *total,
+get_total_entries_cpu(struct array_buffer *buf, unsigned long *total,
unsigned long *entries, int cpu)
{
unsigned long count;
@@ -3624,7 +3624,7 @@ get_total_entries_cpu(struct trace_buffer *buf, unsigned long *total,
}
static void
-get_total_entries(struct trace_buffer *buf,
+get_total_entries(struct array_buffer *buf,
unsigned long *total, unsigned long *entries)
{
unsigned long t, e;
@@ -3676,7 +3676,7 @@ static void print_lat_help_header(struct seq_file *m)
"# \\ / ||||| \\ | / \n");
}
-static void print_event_info(struct trace_buffer *buf, struct seq_file *m)
+static void print_event_info(struct array_buffer *buf, struct seq_file *m)
{
unsigned long total;
unsigned long entries;
@@ -3687,7 +3687,7 @@ static void print_event_info(struct trace_buffer *buf, struct seq_file *m)
seq_puts(m, "#\n");
}
-static void print_func_help_header(struct trace_buffer *buf, struct seq_file *m,
+static void print_func_help_header(struct array_buffer *buf, struct seq_file *m,
unsigned int flags)
{
bool tgid = flags & TRACE_ITER_RECORD_TGID;
@@ -3698,7 +3698,7 @@ static void print_func_help_header(struct trace_buffer *buf, struct seq_file *m,
seq_printf(m, "# | | %s | | |\n", tgid ? " | " : "");
}
-static void print_func_help_header_irq(struct trace_buffer *buf, struct seq_file *m,
+static void print_func_help_header_irq(struct array_buffer *buf, struct seq_file *m,
unsigned int flags)
{
bool tgid = flags & TRACE_ITER_RECORD_TGID;
@@ -3720,7 +3720,7 @@ void
print_trace_header(struct seq_file *m, struct trace_iterator *iter)
{
unsigned long sym_flags = (global_trace.trace_flags & TRACE_ITER_SYM_MASK);
- struct trace_buffer *buf = iter->trace_buffer;
+ struct array_buffer *buf = iter->trace_buffer;
struct trace_array_cpu *data = per_cpu_ptr(buf->data, buf->cpu);
struct tracer *type = iter->trace;
unsigned long entries;
@@ -4357,7 +4357,7 @@ static int tracing_open(struct inode *inode, struct file *file)
/* If this file was open for write, then erase contents */
if ((file->f_mode & FMODE_WRITE) && (file->f_flags & O_TRUNC)) {
int cpu = tracing_get_cpu(inode);
- struct trace_buffer *trace_buf = &tr->trace_buffer;
+ struct array_buffer *trace_buf = &tr->trace_buffer;
#ifdef CONFIG_TRACER_MAX_TRACE
if (tr->current_trace->print_max)
@@ -5532,7 +5532,7 @@ int tracer_init(struct tracer *t, struct trace_array *tr)
return t->init(tr);
}
-static void set_buffer_entries(struct trace_buffer *buf, unsigned long val)
+static void set_buffer_entries(struct array_buffer *buf, unsigned long val)
{
int cpu;
@@ -5542,8 +5542,8 @@ static void set_buffer_entries(struct trace_buffer *buf, unsigned long val)
#ifdef CONFIG_TRACER_MAX_TRACE
/* resize @tr's buffer to the size of @size_tr's entries */
-static int resize_buffer_duplicate_size(struct trace_buffer *trace_buf,
- struct trace_buffer *size_buf, int cpu_id)
+static int resize_buffer_duplicate_size(struct array_buffer *trace_buf,
+ struct array_buffer *size_buf, int cpu_id)
{
int cpu, ret = 0;
@@ -7607,7 +7607,7 @@ tracing_stats_read(struct file *filp, char __user *ubuf,
{
struct inode *inode = file_inode(filp);
struct trace_array *tr = inode->i_private;
- struct trace_buffer *trace_buf = &tr->trace_buffer;
+ struct array_buffer *trace_buf = &tr->trace_buffer;
int cpu = tracing_get_cpu(inode);
struct trace_seq *s;
unsigned long cnt;
@@ -8354,7 +8354,7 @@ static void
init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer);
static int
-allocate_trace_buffer(struct trace_array *tr, struct trace_buffer *buf, int size)
+allocate_trace_buffer(struct trace_array *tr, struct array_buffer *buf, int size)
{
enum ring_buffer_flags rb_flags;
@@ -8409,7 +8409,7 @@ static int allocate_trace_buffers(struct trace_array *tr, int size)
return 0;
}
-static void free_trace_buffer(struct trace_buffer *buf)
+static void free_trace_buffer(struct array_buffer *buf)
{
if (buf->buffer) {
ring_buffer_free(buf->buffer);
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 63bf60f79398..c38524d402f5 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -176,7 +176,7 @@ struct trace_array_cpu {
struct tracer;
struct trace_option_dentry;
-struct trace_buffer {
+struct array_buffer {
struct trace_array *tr;
struct ring_buffer *buffer;
struct trace_array_cpu __percpu *data;
@@ -249,7 +249,7 @@ struct cond_snapshot {
struct trace_array {
struct list_head list;
char *name;
- struct trace_buffer trace_buffer;
+ struct array_buffer trace_buffer;
#ifdef CONFIG_TRACER_MAX_TRACE
/*
* The max_buffer is used to snapshot the trace when a maximum
@@ -262,7 +262,7 @@ struct trace_array {
* with the buffer of the trace_buffer and the buffers are reset for
* the trace_buffer so the tracing can continue.
*/
- struct trace_buffer max_buffer;
+ struct array_buffer max_buffer;
bool allocated_snapshot;
#endif
#if defined(CONFIG_TRACER_MAX_TRACE) || defined(CONFIG_HWLAT_TRACER)
@@ -685,7 +685,7 @@ trace_buffer_iter(struct trace_iterator *iter, int cpu)
int tracer_init(struct tracer *t, struct trace_array *tr);
int tracing_is_enabled(void);
-void tracing_reset_online_cpus(struct trace_buffer *buf);
+void tracing_reset_online_cpus(struct array_buffer *buf);
void tracing_reset_current(int cpu);
void tracing_reset_all_online_cpus(void);
int tracing_open_generic(struct inode *inode, struct file *filp);
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 69ee8ef12cee..3c8171fe229c 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -23,7 +23,7 @@ static inline int trace_valid_entry(struct trace_entry *entry)
return 0;
}
-static int trace_test_buffer_cpu(struct trace_buffer *buf, int cpu)
+static int trace_test_buffer_cpu(struct array_buffer *buf, int cpu)
{
struct ring_buffer_event *event;
struct trace_entry *entry;
@@ -60,7 +60,7 @@ static int trace_test_buffer_cpu(struct trace_buffer *buf, int cpu)
* Test the trace buffer to see if all the elements
* are still sane.
*/
-static int __maybe_unused trace_test_buffer(struct trace_buffer *buf, unsigned long *count)
+static int __maybe_unused trace_test_buffer(struct array_buffer *buf, unsigned long *count)
{
unsigned long flags, cnt = 0;
int cpu, ret = 0;
--
2.24.1
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