tx.xd

#!/usr/sbin/dtrace -Cqs

#pragma D option experimental

#define N2TXH(n) ((dmu_tx_hold_t*)(((char *)n) - 8))

dsl_dir_tempreserve_space:return
/arg1 == ERESTART/
{
	printf("dsl_dir_tempresere_space(dir=%s mem=%uK a=%uK f=%uK u=%uK) -> %u\n",
	    entry->args[0]->dd_myname,
	    entry->args[1] / 1024,
	    entry->args[2] / 1024,
	    entry->args[3] / 1024,
	    entry->args[4] / 1024,
	    arg1);

	this->node = entry->args[6]->tx_holds.list_head.list_next;
	while10(this->node != &entry->args[6]->tx_holds.list_head) {
		print(*N2TXH(this->node));
		printf("\n");
		this->node = this->node->list_next;
	}
}