]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - kernel/trace/trace.c
Merge branch 'davem-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
[linux-2.6-omap-h63xx.git] / kernel / trace / trace.c
index d345d649d073a39d6e572b88047e726754e8da1f..8a499e2adaec2554218051c730f77ccc784ef184 100644 (file)
@@ -34,6 +34,7 @@
 
 #include <linux/stacktrace.h>
 #include <linux/ring_buffer.h>
+#include <linux/irqflags.h>
 
 #include "trace.h"
 
@@ -655,7 +656,11 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags,
        entry->preempt_count            = pc & 0xff;
        entry->pid                      = (tsk) ? tsk->pid : 0;
        entry->flags =
+#ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
                (irqs_disabled_flags(flags) ? TRACE_FLAG_IRQS_OFF : 0) |
+#else
+               TRACE_FLAG_IRQS_NOSUPPORT |
+#endif
                ((pc & HARDIRQ_MASK) ? TRACE_FLAG_HARDIRQ : 0) |
                ((pc & SOFTIRQ_MASK) ? TRACE_FLAG_SOFTIRQ : 0) |
                (need_resched() ? TRACE_FLAG_NEED_RESCHED : 0);
@@ -851,7 +856,7 @@ ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3)
        preempt_enable_notrace();
 }
 
-#ifdef CONFIG_FTRACE
+#ifdef CONFIG_FUNCTION_TRACER
 static void
 function_trace_call(unsigned long ip, unsigned long parent_ip)
 {
@@ -865,9 +870,6 @@ function_trace_call(unsigned long ip, unsigned long parent_ip)
        if (unlikely(!ftrace_function_enabled))
                return;
 
-       if (skip_trace(ip))
-               return;
-
        pc = preempt_count();
        resched = need_resched();
        preempt_disable_notrace();
@@ -1246,7 +1248,8 @@ lat_print_generic(struct trace_seq *s, struct trace_entry *entry, int cpu)
        trace_seq_printf(s, "%8.8s-%-5d ", comm, entry->pid);
        trace_seq_printf(s, "%3d", cpu);
        trace_seq_printf(s, "%c%c",
-                       (entry->flags & TRACE_FLAG_IRQS_OFF) ? 'd' : '.',
+                       (entry->flags & TRACE_FLAG_IRQS_OFF) ? 'd' :
+                        (entry->flags & TRACE_FLAG_IRQS_NOSUPPORT) ? 'X' : '.',
                        ((entry->flags & TRACE_FLAG_NEED_RESCHED) ? 'N' : '.'));
 
        hardirq = entry->flags & TRACE_FLAG_HARDIRQ;
@@ -2379,9 +2382,10 @@ tracing_set_trace_write(struct file *filp, const char __user *ubuf,
        int i;
        size_t ret;
 
+       ret = cnt;
+
        if (cnt > max_tracer_type_len)
                cnt = max_tracer_type_len;
-       ret = cnt;
 
        if (copy_from_user(&buf, ubuf, cnt))
                return -EFAULT;
@@ -2414,8 +2418,8 @@ tracing_set_trace_write(struct file *filp, const char __user *ubuf,
  out:
        mutex_unlock(&trace_types_lock);
 
-       if (ret == cnt)
-               filp->f_pos += cnt;
+       if (ret > 0)
+               filp->f_pos += ret;
 
        return ret;
 }
@@ -3097,7 +3101,7 @@ void ftrace_dump(void)
        dump_ran = 1;
 
        /* No turning back! */
-       ftrace_kill_atomic();
+       ftrace_kill();
 
        for_each_tracing_cpu(cpu) {
                atomic_inc(&global_trace.data[cpu]->disabled);