[patch 1/9] fio: fix job clone mem leak

[Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>]

From: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>

In the loop to create clones at the bottom of add_job the function 
get_new_job
clones the thread_data, just to occaisonally get the allocated pointers for
filename and files overwritten a few lines later.

The dup files also duplicates the name strings so the references to 
these are
lost by the setting to null.

This patch fixes takes care of that and frees the memory before 
discarding the
pointers (found via valgrind).

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
---

[diffstat]
  init.c |   15 +++++++++++++--
  1 file changed, 13 insertions(+), 2 deletions(-)

[diff]

--- a/init.c
+++ b/init.c
@@ -1118,10 +1118,21 @@ static int add_job(struct thread_data *t
  		td_new->o.new_group = 0;
   		if (file_alloced) {
-			td_new->o.filename = NULL;
  			td_new->files_index = 0;
  			td_new->files_size = 0;
-			td_new->files = NULL;
+			if (td_new->files) {
+				struct fio_file *f;
+				for_each_file(td_new, f, i) {
+					if (f->file_name)
+						free(f->file_name);
+					free(f);
+				}
+				td_new->files = NULL;
+			}
+			if (td_new->o.filename) {
+				free(td_new->o.filename);
+				td_new->o.filename = NULL;
+			}
  		}
   		job_add_num = numjobs - 1;