[XFS] Fix merge failures

[linux-2.6-omap-h63xx.git] / kernel / trace / trace_mmiotrace.c

diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index f28484618ff0de99b0c9d5062f23fe8eec25070a..fffcb069f1dcb48213ec0c51a4c8d1774e8235a4 100644 (file)
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -18,46 +18,39 @@ struct header_iter {
 
 static struct trace_array *mmio_trace_array;
 static bool overrun_detected;
+static unsigned long prev_overruns;
 
 static void mmio_reset_data(struct trace_array *tr)
 {
-       int cpu;
-
        overrun_detected = false;
-       tr->time_start = ftrace_now(tr->cpu);
+       prev_overruns = 0;
 
-       for_each_online_cpu(cpu)
-               tracing_reset(tr, cpu);
+       tracing_reset_online_cpus(tr);
 }
 
-static void mmio_trace_init(struct trace_array *tr)
+static int mmio_trace_init(struct trace_array *tr)
 {
        pr_debug("in %s\n", __func__);
        mmio_trace_array = tr;
-       if (tr->ctrl) {
-               mmio_reset_data(tr);
-               enable_mmiotrace();
-       }
+
+       mmio_reset_data(tr);
+       enable_mmiotrace();
+       return 0;
 }
 
 static void mmio_trace_reset(struct trace_array *tr)
 {
        pr_debug("in %s\n", __func__);
-       if (tr->ctrl)
-               disable_mmiotrace();
+
+       disable_mmiotrace();
        mmio_reset_data(tr);
        mmio_trace_array = NULL;
 }
 
-static void mmio_trace_ctrl_update(struct trace_array *tr)
+static void mmio_trace_start(struct trace_array *tr)
 {
        pr_debug("in %s\n", __func__);
-       if (tr->ctrl) {
-               mmio_reset_data(tr);
-               enable_mmiotrace();
-       } else {
-               disable_mmiotrace();
-       }
+       mmio_reset_data(tr);
 }
 
 static int mmio_print_pcidev(struct trace_seq *s, const struct pci_dev *dev)
@@ -128,16 +121,12 @@ static void mmio_close(struct trace_iterator *iter)
 
 static unsigned long count_overruns(struct trace_iterator *iter)
 {
-       int cpu;
        unsigned long cnt = 0;
-/* FIXME: */
-#if 0
-       for_each_online_cpu(cpu) {
-               cnt += iter->overrun[cpu];
-               iter->overrun[cpu] = 0;
-       }
-#endif
-       (void)cpu;
+       unsigned long over = ring_buffer_overruns(iter->tr->buffer);
+
+       if (over > prev_overruns)
+               cnt = over - prev_overruns;
+       prev_overruns = over;
        return cnt;
 }
 
@@ -298,10 +287,10 @@ static struct tracer mmio_tracer __read_mostly =
        .name           = "mmiotrace",
        .init           = mmio_trace_init,
        .reset          = mmio_trace_reset,
+       .start          = mmio_trace_start,
        .pipe_open      = mmio_pipe_open,
        .close          = mmio_close,
        .read           = mmio_read,
-       .ctrl_update    = mmio_trace_ctrl_update,
        .print_line     = mmio_print_line,
 };
 
@@ -373,5 +362,5 @@ void mmio_trace_mapping(struct mmiotrace_map *map)
 
 int mmio_trace_printk(const char *fmt, va_list args)
 {
-       return trace_vprintk(0, fmt, args);
+       return trace_vprintk(0, -1, fmt, args);
 }