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igt/gem_evict_everything: Simplify mlocked_evictions

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igt_fork/igt_waitchildren already perform the magic required to raise
errors based on the exit error code of the child, so take advantage of
that and kill the overlycomplicated message passing!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2015-03-30 17:01:51 +01:00
parent 9c6e6db03d
commit af3e32cee2
1 changed files with 6 additions and 25 deletions
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31
tests/eviction_common.c
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@ -135,12 +135,9 @@ static void mlocked_evictions(int fd, struct igt_eviction_test_ops *ops,
int surface_count)
{
size_t sz, pin;
int result[2];
void *locked;
int ret = -1;
intel_require_memory(surface_count, surface_size, CHECK_RAM);
igt_assert(pipe(result) == 0);
sz = surface_size*surface_count;
pin = intel_get_avail_ram_mb();
@ -163,26 +160,23 @@ static void mlocked_evictions(int fd, struct igt_eviction_test_ops *ops,
igt_fork(child, 1) {
uint32_t *bo;
int n;
int n, ret;
bo = malloc(surface_count*sizeof(*bo));
igt_assert(bo);
locked = malloc(pin);
if (locked == NULL || mlock(locked, pin)) {
ret = ENOSPC;
goto out;
}
if (locked == NULL || mlock(locked, pin))
exit(ENOSPC);
for (n = 0; n < surface_count; n++)
bo[n] = ops->create(fd, surface_size);
ret = 0;
for (n = 0; n < surface_count - 2; n++) {
igt_permute_array(bo, surface_count, exchange_uint32_t);
ret = ops->copy(fd, bo[0], bo[1], bo, surface_count-n);
if (ret)
break;
exit(ret);
/* Having used the surfaces (and so pulled out of
* our pages into memory), start a memory hog to
@ -190,28 +184,15 @@ static void mlocked_evictions(int fd, struct igt_eviction_test_ops *ops,
*/
locked = malloc(surface_size);
if (locked == NULL || mlock(locked, surface_size)) {
ret = ENOSPC;
goto out;
}
if (locked == NULL || mlock(locked, surface_size))
exit(ENOSPC);
}
for (n = 0; n < surface_count; n++)
ops->close(fd, bo[n]);
out:
write(result[1], &ret, sizeof(ret));
}
igt_waitchildren();
fcntl(result[0], F_SETFL, fcntl(result[0], F_GETFL) | O_NONBLOCK);
read(result[0], &ret, sizeof(ret));
close(result[0]);
close(result[1]);
errno = ret;
igt_assert(ret == 0);
}
static int swapping_evictions(int fd, struct igt_eviction_test_ops *ops,