igt/gem_concurrent_blit: Ensure we only shrink the child buffers

As we reuse the parent arrays under the assumption that the child uses
fewer buffers, make sure that is true.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2016-04-20 07:49:02 +01:00
parent 87acd98a2c
commit 459ff6b7e2

View File

@ -1327,11 +1327,15 @@ static void __run_forked(struct buffers *buffers,
buffers_reset(buffers, true);
igt_fork(child, num_children) {
int num_buffers;
/* recreate process local variables */
fd = drm_open_driver(DRIVER_INTEL);
buffers->num_buffers /= num_children;
buffers->num_buffers += MIN_BUFFERS;
num_buffers = buffers->num_buffers / num_children;
num_buffers += MIN_BUFFERS;
if (num_buffers < buffers->num_buffers)
buffers->num_buffers = num_buffers;
buffers_reset(buffers, true);
buffers_create(buffers);