sysctl: remove "struct file *" argument of ->proc_handler

[safe/jmp/linux-2.6] / kernel / trace / ftrace.c

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index f7ab7fc..a142579 100644 (file)
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1405,7 +1405,7 @@ static int t_hash_show(struct seq_file *m, void *v)
        if (rec->ops->print)
                return rec->ops->print(m, rec->ip, rec->ops, rec->data);
 
-       seq_printf(m, "%pf:%pf", (void *)rec->ip, (void *)rec->ops->func);
+       seq_printf(m, "%ps:%ps", (void *)rec->ip, (void *)rec->ops->func);
 
        if (rec->data)
                seq_printf(m, ":%p", rec->data);
@@ -1515,12 +1515,12 @@ static int t_show(struct seq_file *m, void *v)
        if (!rec)
                return 0;
 
-       seq_printf(m, "%pf\n", (void *)rec->ip);
+       seq_printf(m, "%ps\n", (void *)rec->ip);
 
        return 0;
 }
 
-static struct seq_operations show_ftrace_seq_ops = {
+static const struct seq_operations show_ftrace_seq_ops = {
        .start = t_start,
        .next = t_next,
        .stop = t_stop,
@@ -2414,11 +2414,9 @@ unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS] __read_mostly;
 static void *
 __g_next(struct seq_file *m, loff_t *pos)
 {
-       unsigned long *array = m->private;
-
        if (*pos >= ftrace_graph_count)
                return NULL;
-       return &array[*pos];
+       return &ftrace_graph_funcs[*pos];
 }
 
 static void *
@@ -2456,12 +2454,12 @@ static int g_show(struct seq_file *m, void *v)
                return 0;
        }
 
-       seq_printf(m, "%pf\n", (void *)*ptr);
+       seq_printf(m, "%ps\n", (void *)*ptr);
 
        return 0;
 }
 
-static struct seq_operations ftrace_graph_seq_ops = {
+static const struct seq_operations ftrace_graph_seq_ops = {
        .start = g_start,
        .next = g_next,
        .stop = g_stop,
@@ -2482,16 +2480,10 @@ ftrace_graph_open(struct inode *inode, struct file *file)
                ftrace_graph_count = 0;
                memset(ftrace_graph_funcs, 0, sizeof(ftrace_graph_funcs));
        }
+       mutex_unlock(&graph_lock);
 
-       if (file->f_mode & FMODE_READ) {
+       if (file->f_mode & FMODE_READ)
                ret = seq_open(file, &ftrace_graph_seq_ops);
-               if (!ret) {
-                       struct seq_file *m = file->private_data;
-                       m->private = ftrace_graph_funcs;
-               }
-       } else
-               file->private_data = ftrace_graph_funcs;
-       mutex_unlock(&graph_lock);
 
        return ret;
 }
@@ -2560,7 +2552,6 @@ ftrace_graph_write(struct file *file, const char __user *ubuf,
                   size_t cnt, loff_t *ppos)
 {
        struct trace_parser parser;
-       unsigned long *array;
        size_t read = 0;
        ssize_t ret;
 
@@ -2574,12 +2565,6 @@ ftrace_graph_write(struct file *file, const char __user *ubuf,
                goto out;
        }
 
-       if (file->f_mode & FMODE_READ) {
-               struct seq_file *m = file->private_data;
-               array = m->private;
-       } else
-               array = file->private_data;
-
        if (trace_parser_get_init(&parser, FTRACE_BUFF_MAX)) {
                ret = -ENOMEM;
                goto out;
@@ -2591,7 +2576,7 @@ ftrace_graph_write(struct file *file, const char __user *ubuf,
                parser.buffer[parser.idx] = 0;
 
                /* we allow only one expression at a time */
-               ret = ftrace_set_func(array, &ftrace_graph_count,
+               ret = ftrace_set_func(ftrace_graph_funcs, &ftrace_graph_count,
                                        parser.buffer);
                if (ret)
                        goto out;
@@ -3030,7 +3015,7 @@ int unregister_ftrace_function(struct ftrace_ops *ops)
 
 int
 ftrace_enable_sysctl(struct ctl_table *table, int write,
-                    struct file *file, void __user *buffer, size_t *lenp,
+                    void __user *buffer, size_t *lenp,
                     loff_t *ppos)
 {
        int ret;
@@ -3040,7 +3025,7 @@ ftrace_enable_sysctl(struct ctl_table *table, int write,
 
        mutex_lock(&ftrace_lock);
 
-       ret  = proc_dointvec(table, write, file, buffer, lenp, ppos);
+       ret  = proc_dointvec(table, write, buffer, lenp, ppos);
 
        if (ret || !write || (last_ftrace_enabled == !!ftrace_enabled))
                goto out;