[Intel-gfx] [PATCH 4/4 v2] gem_flink_race: Assure no pending requests before object counting

[Daniel Vetter]

On Tue, Nov 05, 2013 at 10:57:31AM +0000, oscar.mateo at intel.com wrote:
> From: Oscar Mateo <oscar.mateo at intel.com>
> 
> Same thing that was done for prime_self_import.
> 
> v2: Move igt_drop_caches_set() call inside get_object_count() to make
> it clearer why we want this.
> 
> Signed-off-by: Oscar Mateo <oscar.mateo at intel.com>

Both merged, thanks for the patches.
-Daniel

> ---
>  tests/gem_flink_race.c |    7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/gem_flink_race.c b/tests/gem_flink_race.c
> index b81007e..195ec15 100644
> --- a/tests/gem_flink_race.c
> +++ b/tests/gem_flink_race.c
> @@ -35,6 +35,7 @@
>  #include "drmtest.h"
>  #include "i915_drm.h"
>  #include "intel_bufmgr.h"
> +#include "igt_debugfs.h"
>  
>  /* Testcase: check for flink/open vs. gem close races
>   *
> @@ -54,6 +55,8 @@ static int get_object_count(void)
>  	int device = drm_get_card();
>  	char *path;
>  
> +	igt_drop_caches_set(DROP_RETIRE);
> +
>  	ret = asprintf(&path, "/sys/kernel/debug/dri/%d/i915_gem_objects", device);
>  	igt_assert(ret != -1);
>  
> @@ -157,9 +160,11 @@ static void test_flink_close(void)
>  {
>  	pthread_t *threads;
>  	int r, i, num_threads;
> -	int obj_count = get_object_count();
> +	int obj_count;
>  	void *status;
>  
> +	obj_count = get_object_count();
> +
>  	num_threads = sysconf(_SC_NPROCESSORS_ONLN);
>  
>  	threads = calloc(num_threads, sizeof(pthread_t));
> -- 
> 1.7.9.5
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch