1 files changed, 20 insertions, 22 deletions

diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index 908202afbae..d969bb13a25 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -1,11 +1,12 @@
 /**
  * @file buffer_sync.c
  *
- * @remark Copyright 2002 OProfile authors
+ * @remark Copyright 2002-2009 OProfile authors
  * @remark Read the file COPYING
  *
  * @author John Levon <levon@movementarian.org>
  * @author Barry Kasindorf
+ * @author Robert Richter <robert.richter@amd.com>
  *
  * This is the core of the buffer management. Each
  * CPU buffer is processed and entered into the
@@ -529,6 +530,7 @@ void sync_buffer(int cpu)
         sync_buffer_state state = sb_buffer_start;
         unsigned int i;
         unsigned long available;
+        unsigned long flags;
         struct op_entry entry;
         struct op_sample *sample;
 
@@ -545,38 +547,34 @@ void sync_buffer(int cpu)
                         break;
 
                 if (is_code(sample->eip)) {
-                        switch (sample->event) {
-                        case 0:
-                        case CPU_IS_KERNEL:
+                        flags = sample->event;
+                        if (flags & TRACE_BEGIN) {
+                                state = sb_bt_start;
+                                add_trace_begin();
+                        }
+                        if (flags & KERNEL_CTX_SWITCH) {
                                 /* kernel/userspace switch */
-                                in_kernel = sample->event;
+                                in_kernel = flags & IS_KERNEL;
                                 if (state == sb_buffer_start)
                                         state = sb_sample_start;
-                                add_kernel_ctx_switch(sample->event);
-                                break;
-                        case CPU_TRACE_BEGIN:
-                                state = sb_bt_start;
-                                add_trace_begin();
-                                break;
-#ifdef CONFIG_OPROFILE_IBS
-                        case IBS_FETCH_BEGIN:
-                                add_ibs_begin(cpu, IBS_FETCH_CODE, mm);
-                                break;
-                        case IBS_OP_BEGIN:
-                                add_ibs_begin(cpu, IBS_OP_CODE, mm);
-                                break;
-#endif
-                        default:
+                                add_kernel_ctx_switch(flags & IS_KERNEL);
+                        }
+                        if (flags & USER_CTX_SWITCH) {
                                 /* userspace context switch */
                                 oldmm = mm;
-                                new = (struct task_struct *)sample->event;
+                                new = (struct task_struct *)sample->data[0];
                                 release_mm(oldmm);
                                 mm = take_tasks_mm(new);
                                 if (mm != oldmm)
                                         cookie = get_exec_dcookie(mm);
                                 add_user_ctx_switch(new, cookie);
-                                break;
                         }
+#ifdef CONFIG_OPROFILE_IBS
+                        if (flags & IBS_FETCH_BEGIN)
+                                add_ibs_begin(cpu, IBS_FETCH_CODE, mm);
+                        if (flags & IBS_OP_BEGIN)
+                                add_ibs_begin(cpu, IBS_OP_CODE, mm);
+#endif
                         continue;
                 }