Add few debug statements and limit thread usage.

[fio.git] / engines / mmap.c

diff --git a/engines/mmap.c b/engines/mmap.c
index 0922e97e045d7baa3e938867bcfd5dcd8556777d..556e56de0e0289444965fc43e53d85f0e9dd25a9 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>
@@ -33,7 +36,7 @@ static int fio_mmapio_queue(struct thread_data *td, struct io_u *io_u)
        /*
         * not really direct, but should drop the pages from the cache
         */
-       if (td->odirect && io_u->ddir != DDIR_SYNC) {
+       if (td->o.odirect && io_u->ddir != DDIR_SYNC) {
                size_t len = (io_u->xfer_buflen + page_size - 1) & ~page_mask;
                unsigned long long off = real_off & ~page_mask;
 
@@ -63,7 +66,7 @@ static int fio_mmapio_open(struct thread_data *td, struct fio_file *f)
        else if (td_write(td)) {
                flags = PROT_WRITE;
 
-               if (td->verify != VERIFY_NONE)
+               if (td->o.verify != VERIFY_NONE)
                        flags |= PROT_READ;
        } else
                flags = PROT_READ;