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Message-Id: <20170614222729.16521-5-jeremy.linton@arm.com>
Date: Wed, 14 Jun 2017 17:27:20 -0500
From: Jeremy Linton <jeremy.linton@....com>
To: linux-kernel@...r.kernel.org
Cc: linux-arch@...r.kernel.org, rostedt@...dmis.org, mingo@...hat.com,
rusty@...tcorp.com.au, jeyu@...hat.com,
kirill.shutemov@...ux.intel.com, christoffer.dall@...aro.org,
marc.zyngier@....com, jcm@...masters.org, clemens@...isch.de,
perex@...ex.cz
Subject: [PATCH v2 04/13] trace: rename trace enum data structures in trace.c
The enum map entries can be exported to userspace
via a sys enum_map file. Rename those functions
and structures to reflect the fact that we are using
them for more than enums.
Signed-off-by: Jeremy Linton <jeremy.linton@....com>
---
kernel/trace/trace.c | 52 ++++++++++++++++++++++++++--------------------------
1 file changed, 26 insertions(+), 26 deletions(-)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 85f0e3c..af6ec07 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -122,38 +122,38 @@ int __disable_trace_on_warning;
#ifdef CONFIG_TRACE_ENUM_MAP_FILE
/* Map of enums to their values, for "enum_map" file */
-struct trace_enum_map_head {
+struct trace_eval_map_head {
struct module *mod;
unsigned long length;
};
-union trace_enum_map_item;
+union trace_eval_map_item;
-struct trace_enum_map_tail {
+struct trace_eval_map_tail {
/*
* "end" is first and points to NULL as it must be different
* than "mod" or "eval_string"
*/
- union trace_enum_map_item *next;
+ union trace_eval_map_item *next;
const char *end; /* points to NULL */
};
static DEFINE_MUTEX(trace_enum_mutex);
/*
- * The trace_enum_maps are saved in an array with two extra elements,
+ * The trace_eval_maps are saved in an array with two extra elements,
* one at the beginning, and one at the end. The beginning item contains
* the count of the saved maps (head.length), and the module they
* belong to if not built in (head.mod). The ending item contains a
* pointer to the next array of saved enum_map items.
*/
-union trace_enum_map_item {
+union trace_eval_map_item {
struct trace_eval_map map;
- struct trace_enum_map_head head;
- struct trace_enum_map_tail tail;
+ struct trace_eval_map_head head;
+ struct trace_eval_map_tail tail;
};
-static union trace_enum_map_item *trace_enum_maps;
+static union trace_eval_map_item *trace_eval_maps;
#endif /* CONFIG_TRACE_ENUM_MAP_FILE */
static int tracing_set_tracer(struct trace_array *tr, const char *buf);
@@ -4718,8 +4718,8 @@ static const struct file_operations tracing_saved_cmdlines_size_fops = {
};
#ifdef CONFIG_TRACE_ENUM_MAP_FILE
-static union trace_enum_map_item *
-update_enum_map(union trace_enum_map_item *ptr)
+static union trace_eval_map_item *
+update_enum_map(union trace_eval_map_item *ptr)
{
if (!ptr->map.eval_string) {
if (ptr->tail.next) {
@@ -4734,7 +4734,7 @@ update_enum_map(union trace_enum_map_item *ptr)
static void *enum_map_next(struct seq_file *m, void *v, loff_t *pos)
{
- union trace_enum_map_item *ptr = v;
+ union trace_eval_map_item *ptr = v;
/*
* Paranoid! If ptr points to end, we don't want to increment past it.
@@ -4755,12 +4755,12 @@ static void *enum_map_next(struct seq_file *m, void *v, loff_t *pos)
static void *enum_map_start(struct seq_file *m, loff_t *pos)
{
- union trace_enum_map_item *v;
+ union trace_eval_map_item *v;
loff_t l = 0;
mutex_lock(&trace_enum_mutex);
- v = trace_enum_maps;
+ v = trace_eval_maps;
if (v)
v++;
@@ -4778,7 +4778,7 @@ static void enum_map_stop(struct seq_file *m, void *v)
static int enum_map_show(struct seq_file *m, void *v)
{
- union trace_enum_map_item *ptr = v;
+ union trace_eval_map_item *ptr = v;
seq_printf(m, "%s %ld (%s)\n",
ptr->map.eval_string, ptr->map.eval_value,
@@ -4809,8 +4809,8 @@ static const struct file_operations tracing_enum_map_fops = {
.release = seq_release,
};
-static inline union trace_enum_map_item *
-trace_enum_jmp_to_tail(union trace_enum_map_item *ptr)
+static inline union trace_eval_map_item *
+trace_enum_jmp_to_tail(union trace_eval_map_item *ptr)
{
/* Return tail of array given the head */
return ptr + ptr->head.length + 1;
@@ -4822,13 +4822,13 @@ trace_insert_enum_map_file(struct module *mod, struct trace_eval_map **start,
{
struct trace_eval_map **stop;
struct trace_eval_map **map;
- union trace_enum_map_item *map_array;
- union trace_enum_map_item *ptr;
+ union trace_eval_map_item *map_array;
+ union trace_eval_map_item *ptr;
stop = start + len;
/*
- * The trace_enum_maps contains the map plus a head and tail item,
+ * The trace_eval_maps contains the map plus a head and tail item,
* where the head holds the module and length of array, and the
* tail holds a pointer to the next list.
*/
@@ -4840,10 +4840,10 @@ trace_insert_enum_map_file(struct module *mod, struct trace_eval_map **start,
mutex_lock(&trace_enum_mutex);
- if (!trace_enum_maps)
- trace_enum_maps = map_array;
+ if (!trace_eval_maps)
+ trace_eval_maps = map_array;
else {
- ptr = trace_enum_maps;
+ ptr = trace_eval_maps;
for (;;) {
ptr = trace_enum_jmp_to_tail(ptr);
if (!ptr->tail.next)
@@ -7734,15 +7734,15 @@ static void trace_module_add_enums(struct module *mod)
#ifdef CONFIG_TRACE_ENUM_MAP_FILE
static void trace_module_remove_enums(struct module *mod)
{
- union trace_enum_map_item *map;
- union trace_enum_map_item **last = &trace_enum_maps;
+ union trace_eval_map_item *map;
+ union trace_eval_map_item **last = &trace_eval_maps;
if (!mod->num_trace_evals)
return;
mutex_lock(&trace_enum_mutex);
- map = trace_enum_maps;
+ map = trace_eval_maps;
while (map) {
if (map->head.mod == mod)
--
2.9.4
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