Function ztest_prealloc

freebsd/contrib/openzfs/cmd/ztest/ztest.c:2574–2603

}

static void
ztest_prealloc(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
{
	objset_t *os = zd->zd_os;
	dmu_tx_t *tx;
	uint64_t txg;
	rl_t *rl;

	txg_wait_synced(dmu_objset_pool(os), 0);

	ztest_object_lock(zd, object, RL_READER);
	rl = ztest_range_lock(zd, object, offset, size, RL_WRITER);

	tx = dmu_tx_create(os);

	dmu_tx_hold_write(tx, object, offset, size);

	txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);

	if (txg != 0) {
		dmu_prealloc(os, object, offset, size, tx);
		dmu_tx_commit(tx);
		txg_wait_synced(dmu_objset_pool(os), txg);
	} else {
		(void) dmu_free_long_range(os, object, offset, size);
	}

	ztest_range_unlock(rl);
	ztest_object_unlock(zd, object);
}

static void
ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)