Update io engine comments

[fio.git] / engines / mmap.c

diff --git a/engines/mmap.c b/engines/mmap.c
index 0922e97e045d7baa3e938867bcfd5dcd8556777d..17cf5fcfc9964efa53c91877ec05fc7c3c56e6ae 100644 (file)
--- a/engines/mmap.c
+++ b/engines/mmap.c
@@ -1,5 +1,8 @@
 /*
- * regular read/write sync io engine
+ * mmap engine
+ *
+ * IO engine that reads/writes from files by doing memcpy to/from
+ * a memory mapped region of the file.
  *
  */
 #include <stdio.h>