Function dsl_pool_open_impl

freebsd/contrib/openzfs/module/zfs/dsl_pool.c:186–231

}

static dsl_pool_t *
dsl_pool_open_impl(spa_t *spa, uint64_t txg)
{
	dsl_pool_t *dp;
	blkptr_t *bp = spa_get_rootblkptr(spa);

	dp = kmem_zalloc(sizeof (dsl_pool_t), KM_SLEEP);
	dp->dp_spa = spa;
	dp->dp_meta_rootbp = *bp;
	rrw_init(&dp->dp_config_rwlock, B_TRUE);
	txg_init(dp, txg);
	mmp_init(spa);

	txg_list_create(&dp->dp_dirty_datasets, spa,
	    offsetof(dsl_dataset_t, ds_dirty_link));
	txg_list_create(&dp->dp_dirty_zilogs, spa,
	    offsetof(zilog_t, zl_dirty_link));
	txg_list_create(&dp->dp_dirty_dirs, spa,
	    offsetof(dsl_dir_t, dd_dirty_link));
	txg_list_create(&dp->dp_sync_tasks, spa,
	    offsetof(dsl_sync_task_t, dst_node));
	txg_list_create(&dp->dp_early_sync_tasks, spa,
	    offsetof(dsl_sync_task_t, dst_node));

	dp->dp_sync_taskq = taskq_create("dp_sync_taskq",
	    zfs_sync_taskq_batch_pct, minclsyspri, 1, INT_MAX,
	    TASKQ_THREADS_CPU_PCT);

	dp->dp_zil_clean_taskq = taskq_create("dp_zil_clean_taskq",
	    zfs_zil_clean_taskq_nthr_pct, minclsyspri,
	    zfs_zil_clean_taskq_minalloc,
	    zfs_zil_clean_taskq_maxalloc,
	    TASKQ_PREPOPULATE | TASKQ_THREADS_CPU_PCT);

	mutex_init(&dp->dp_lock, NULL, MUTEX_DEFAULT, NULL);
	cv_init(&dp->dp_spaceavail_cv, NULL, CV_DEFAULT, NULL);

	dp->dp_zrele_taskq = taskq_create("z_zrele", 100, defclsyspri,
	    boot_ncpus * 8, INT_MAX, TASKQ_PREPOPULATE | TASKQ_DYNAMIC |
	    TASKQ_THREADS_CPU_PCT);
	dp->dp_unlinked_drain_taskq = taskq_create("z_unlinked_drain",
	    100, defclsyspri, boot_ncpus, INT_MAX,
	    TASKQ_PREPOPULATE | TASKQ_DYNAMIC | TASKQ_THREADS_CPU_PCT);

	return (dp);
}

int
dsl_pool_init(spa_t *spa, uint64_t txg, dsl_pool_t **dpp)