1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index ed982273fb8b..37681700b61a 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -628,3 +628,27 @@ void sync_buffer(int cpu)
 
         mutex_unlock(&buffer_mutex);
 }
+
+/* The function can be used to add a buffer worth of data directly to
+ * the kernel buffer. The buffer is assumed to be a circular buffer.
+ * Take the entries from index start and end at index end, wrapping
+ * at max_entries.
+ */
+void oprofile_put_buff(unsigned long *buf, unsigned int start,
+                       unsigned int stop, unsigned int max)
+{
+        int i;
+
+        i = start;
+
+        mutex_lock(&buffer_mutex);
+        while (i != stop) {
+                add_event_entry(buf[i++]);
+
+                if (i >= max)
+                        i = 0;
+        }
+
+        mutex_unlock(&buffer_mutex);
+}
+