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test-block-iothread: Test AioContext propagation for block jobs 

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2019-05-06 19:18:05 +02:00
parent 657e120320
commit 012056f48d
1 changed files with 71 additions and 0 deletions
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71
tests/test-block-iothread.c
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@ -588,6 +588,76 @@ static void test_propagate_diamond(void)
bdrv_unref(bs_a); bdrv_unref(bs_a);
} }
static void test_propagate_mirror(void)
{
IOThread *iothread = iothread_new();
AioContext *ctx = iothread_get_aio_context(iothread);
AioContext *main_ctx = qemu_get_aio_context();
BlockDriverState *src, *target;
BlockBackend *blk;
Job *job;
Error *local_err = NULL;
/* Create src and target*/
src = bdrv_new_open_driver(&bdrv_test, "src", BDRV_O_RDWR, &error_abort);
target = bdrv_new_open_driver(&bdrv_test, "target", BDRV_O_RDWR,
&error_abort);
/* Start a mirror job */
mirror_start("job0", src, target, NULL, JOB_DEFAULT, 0, 0, 0,
MIRROR_SYNC_MODE_NONE, MIRROR_OPEN_BACKING_CHAIN,
BLOCKDEV_ON_ERROR_REPORT, BLOCKDEV_ON_ERROR_REPORT,
false, "filter_node", MIRROR_COPY_MODE_BACKGROUND,
&error_abort);
job = job_get("job0");
/* Change the AioContext of src */
bdrv_try_set_aio_context(src, ctx, &error_abort);
g_assert(bdrv_get_aio_context(src) == ctx);
g_assert(bdrv_get_aio_context(target) == ctx);
g_assert(job->aio_context == ctx);
/* Change the AioContext of target */
aio_context_acquire(ctx);
bdrv_try_set_aio_context(target, main_ctx, &error_abort);
aio_context_release(ctx);
g_assert(bdrv_get_aio_context(src) == main_ctx);
g_assert(bdrv_get_aio_context(target) == main_ctx);
/* With a BlockBackend on src, changing target must fail */
blk = blk_new(0, BLK_PERM_ALL);
blk_insert_bs(blk, src, &error_abort);
bdrv_try_set_aio_context(target, ctx, &local_err);
g_assert(local_err);
error_free(local_err);
g_assert(blk_get_aio_context(blk) == main_ctx);
g_assert(bdrv_get_aio_context(src) == main_ctx);
g_assert(bdrv_get_aio_context(target) == main_ctx);
/* ...unless we explicitly allow it */
aio_context_acquire(ctx);
blk_set_allow_aio_context_change(blk, true);
bdrv_try_set_aio_context(target, ctx, &error_abort);
aio_context_release(ctx);
g_assert(blk_get_aio_context(blk) == ctx);
g_assert(bdrv_get_aio_context(src) == ctx);
g_assert(bdrv_get_aio_context(target) == ctx);
job_cancel_sync_all();
aio_context_acquire(ctx);
blk_set_aio_context(blk, main_ctx);
bdrv_try_set_aio_context(target, main_ctx, &error_abort);
aio_context_release(ctx);
blk_unref(blk);
bdrv_unref(src);
bdrv_unref(target);
}
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
int i; int i;
@ -605,6 +675,7 @@ int main(int argc, char **argv)
g_test_add_func("/attach/blockjob", test_attach_blockjob); g_test_add_func("/attach/blockjob", test_attach_blockjob);
g_test_add_func("/propagate/basic", test_propagate_basic); g_test_add_func("/propagate/basic", test_propagate_basic);
g_test_add_func("/propagate/diamond", test_propagate_diamond); g_test_add_func("/propagate/diamond", test_propagate_diamond);
g_test_add_func("/propagate/mirror", test_propagate_mirror);
return g_test_run(); return g_test_run();
} }