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.

Link: http://lkml.kernel.org/r/20170531215653.3240-5-jeremy.linton@arm.com
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 061abd8ba101c20899e8d644114cc41c05bc7109..13c81f4f2bd75e44889362ca04e4bf13d4af41d4 100644 (file)
--- 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);
@@ -4745,8 +4745,8 @@ 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) {
@@ -4761,7 +4761,7 @@ 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.
@@ -4782,12 +4782,12 @@ 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++;
 
@@ -4805,7 +4805,7 @@ 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,
@@ -4836,8 +4836,8 @@ 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;
@@ -4849,13 +4849,13 @@ 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.
         */
@@ -4867,10 +4867,10 @@ 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)
@@ -7762,15 +7762,15 @@ 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)