Apply preempt_rt patch-4.9-rt1.patch.xz

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

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 8696ce6bf2f68838caefb8025ae3a6b133a2de64..277f048a4695f2ba0c27fa65c26515fee0c54ca7 100644 (file)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1897,6 +1897,7 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags,
        struct task_struct *tsk = current;
 
        entry->preempt_count            = pc & 0xff;
+       entry->preempt_lazy_count       = preempt_lazy_count();
        entry->pid                      = (tsk) ? tsk->pid : 0;
        entry->flags =
 #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT
@@ -1907,8 +1908,11 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags,
                ((pc & NMI_MASK    ) ? TRACE_FLAG_NMI     : 0) |
                ((pc & HARDIRQ_MASK) ? TRACE_FLAG_HARDIRQ : 0) |
                ((pc & SOFTIRQ_MASK) ? TRACE_FLAG_SOFTIRQ : 0) |
-               (tif_need_resched() ? TRACE_FLAG_NEED_RESCHED : 0) |
+               (tif_need_resched_now() ? TRACE_FLAG_NEED_RESCHED : 0) |
+               (need_resched_lazy() ? TRACE_FLAG_NEED_RESCHED_LAZY : 0) |
                (test_preempt_need_resched() ? TRACE_FLAG_PREEMPT_RESCHED : 0);
+
+       entry->migrate_disable = (tsk) ? __migrate_disabled(tsk) & 0xFF : 0;
 }
 EXPORT_SYMBOL_GPL(tracing_generic_entry_update);
 
@@ -2892,14 +2896,17 @@ get_total_entries(struct trace_buffer *buf,
 
 static void print_lat_help_header(struct seq_file *m)
 {
-       seq_puts(m, "#                  _------=> CPU#            \n"
-                   "#                 / _-----=> irqs-off        \n"
-                   "#                | / _----=> need-resched    \n"
-                   "#                || / _---=> hardirq/softirq \n"
-                   "#                ||| / _--=> preempt-depth   \n"
-                   "#                |||| /     delay            \n"
-                   "#  cmd     pid   ||||| time  |   caller      \n"
-                   "#     \\   /      |||||  \\    |   /         \n");
+       seq_puts(m, "#                  _--------=> CPU#              \n"
+                   "#                 / _-------=> irqs-off          \n"
+                   "#                | / _------=> need-resched      \n"
+                   "#                || / _-----=> need-resched_lazy \n"
+                   "#                ||| / _----=> hardirq/softirq   \n"
+                   "#                |||| / _---=> preempt-depth     \n"
+                   "#                ||||| / _--=> preempt-lazy-depth\n"
+                   "#                |||||| / _-=> migrate-disable   \n"
+                   "#                ||||||| /     delay             \n"
+                   "# cmd     pid    |||||||| time   |  caller       \n"
+                   "#     \\   /      ||||||||   \\    |  /            \n");
 }
 
 static void print_event_info(struct trace_buffer *buf, struct seq_file *m)
@@ -2925,11 +2932,14 @@ static void print_func_help_header_irq(struct trace_buffer *buf, struct seq_file
        print_event_info(buf, m);
        seq_puts(m, "#                              _-----=> irqs-off\n"
                    "#                             / _----=> need-resched\n"
-                   "#                            | / _---=> hardirq/softirq\n"
-                   "#                            || / _--=> preempt-depth\n"
-                   "#                            ||| /     delay\n"
-                   "#           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION\n"
-                   "#              | |       |   ||||       |         |\n");
+                   "#                            |/  _-----=> need-resched_lazy\n"
+                   "#                            || / _---=> hardirq/softirq\n"
+                   "#                            ||| / _--=> preempt-depth\n"
+                   "#                            |||| / _-=> preempt-lazy-depth\n"
+                   "#                            ||||| / _-=> migrate-disable   \n"
+                   "#                            |||||| /    delay\n"
+                   "#           TASK-PID   CPU#  |||||||   TIMESTAMP  FUNCTION\n"
+                   "#              | |       |   |||||||      |         |\n");
 }
 
 void