static pgcnt_t old_physmem = 0;
+static void
+dsl_pool_tx_assign_init(dsl_pool_t *dp, unsigned int ndata)
+{
+ kstat_named_t *ks;
+ char name[KSTAT_STRLEN];
+ int i, data_size = ndata * sizeof(kstat_named_t);
+
+ (void) snprintf(name, KSTAT_STRLEN, "dmu_tx_assign-%s",
+ spa_name(dp->dp_spa));
+
+ dp->dp_tx_assign_size = ndata;
+
+ if (data_size)
+ dp->dp_tx_assign_buckets = kmem_alloc(data_size, KM_SLEEP);
+ else
+ dp->dp_tx_assign_buckets = NULL;
+
+ for (i = 0; i < dp->dp_tx_assign_size; i++) {
+ ks = &dp->dp_tx_assign_buckets[i];
+ ks->data_type = KSTAT_DATA_UINT64;
+ ks->value.ui64 = 0;
+ (void) snprintf(ks->name, KSTAT_STRLEN, "%u us", 1 << i);
+ }
+
+ dp->dp_tx_assign_kstat = kstat_create("zfs", 0, name, "misc",
+ KSTAT_TYPE_NAMED, 0, KSTAT_FLAG_VIRTUAL);
+
+ if (dp->dp_tx_assign_kstat) {
+ dp->dp_tx_assign_kstat->ks_data = dp->dp_tx_assign_buckets;
+ dp->dp_tx_assign_kstat->ks_ndata = dp->dp_tx_assign_size;
+ dp->dp_tx_assign_kstat->ks_data_size = data_size;
+ kstat_install(dp->dp_tx_assign_kstat);
+ }
+}
+
+static void
+dsl_pool_tx_assign_destroy(dsl_pool_t *dp)
+{
+ if (dp->dp_tx_assign_buckets)
+ kmem_free(dp->dp_tx_assign_buckets,
+ dp->dp_tx_assign_size * sizeof(kstat_named_t));
+
+ if (dp->dp_tx_assign_kstat)
+ kstat_delete(dp->dp_tx_assign_kstat);
+}
+
+void
+dsl_pool_tx_assign_add_usecs(dsl_pool_t *dp, uint64_t usecs)
+{
+ uint64_t idx = 0;
+
+ while (((1 << idx) < usecs) && (idx < dp->dp_tx_assign_size - 1))
+ idx++;
+
+ atomic_inc_64(&dp->dp_tx_assign_buckets[idx].value.ui64);
+}
+
static int
dsl_pool_txg_history_update(kstat_t *ksp, int rw)
{
1, 4, 0);
dsl_pool_txg_history_init(dp, txg);
+ dsl_pool_tx_assign_init(dp, 32);
return (dp);
}
arc_flush(dp->dp_spa);
txg_fini(dp);
dsl_scan_fini(dp);
+ dsl_pool_tx_assign_destroy(dp);
dsl_pool_txg_history_destroy(dp);
rw_destroy(&dp->dp_config_rwlock);
mutex_destroy(&dp->dp_lock);