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igt/gem_concurrent_blit: Ensure we only shrink the child buffers

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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
1 changed files with 6 additions and 2 deletions
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8
tests/gem_concurrent_all.c
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@ -1327,11 +1327,15 @@ static void __run_forked(struct buffers *buffers,
buffers_reset(buffers, true); buffers_reset(buffers, true);
igt_fork(child, num_children) { igt_fork(child, num_children) {
int num_buffers;
/* recreate process local variables */ /* recreate process local variables */
fd = drm_open_driver(DRIVER_INTEL); fd = drm_open_driver(DRIVER_INTEL);
buffers->num_buffers /= num_children; num_buffers = buffers->num_buffers / num_children;
buffers->num_buffers += MIN_BUFFERS; num_buffers += MIN_BUFFERS;
if (num_buffers < buffers->num_buffers)
buffers->num_buffers = num_buffers;
buffers_reset(buffers, true); buffers_reset(buffers, true);
buffers_create(buffers); buffers_create(buffers);