tracing: Kill trace_cpu struct/members

[cascardo/linux.git] / kernel / trace / trace.c

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index dd7780d..69cba47 100644 (file)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5865,17 +5865,6 @@ struct dentry *trace_instance_dir;
 static void
 init_tracer_debugfs(struct trace_array *tr, struct dentry *d_tracer);
 
-static void init_trace_buffers(struct trace_array *tr, struct trace_buffer *buf)
-{
-       int cpu;
-
-       for_each_tracing_cpu(cpu) {
-               memset(per_cpu_ptr(buf->data, cpu), 0, sizeof(struct trace_array_cpu));
-               per_cpu_ptr(buf->data, cpu)->trace_cpu.cpu = cpu;
-               per_cpu_ptr(buf->data, cpu)->trace_cpu.tr = tr;
-       }
-}
-
 static int
 allocate_trace_buffer(struct trace_array *tr, struct trace_buffer *buf, int size)
 {
@@ -5893,8 +5882,6 @@ allocate_trace_buffer(struct trace_array *tr, struct trace_buffer *buf, int size
                return -ENOMEM;
        }
 
-       init_trace_buffers(tr, buf);
-
        /* Allocate the first page for all buffers */
        set_buffer_entries(&tr->trace_buffer,
                           ring_buffer_size(tr->trace_buffer.buffer, 0));
@@ -5961,10 +5948,6 @@ static int new_instance_create(const char *name)
        if (allocate_trace_buffers(tr, trace_buf_size) < 0)
                goto out_free_tr;
 
-       /* Holder for file callbacks */
-       tr->trace_cpu.cpu = RING_BUFFER_ALL_CPUS;
-       tr->trace_cpu.tr = tr;
-
        tr->dir = debugfs_create_dir(name, trace_instance_dir);
        if (!tr->dir)
                goto out_free_tr;
@@ -6438,10 +6421,6 @@ __init static int tracer_alloc_buffers(void)
 
        global_trace.flags = TRACE_ARRAY_FL_GLOBAL;
 
-       /* Holder for file callbacks */
-       global_trace.trace_cpu.cpu = RING_BUFFER_ALL_CPUS;
-       global_trace.trace_cpu.tr = &global_trace;
-
        INIT_LIST_HEAD(&global_trace.systems);
        INIT_LIST_HEAD(&global_trace.events);
        list_add(&global_trace.list, &ftrace_trace_arrays);