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Rename various "freeze multixact" variables

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It seems to make more sense to use "cutoff multixact" terminology
throughout the backend code; "freeze" is associated with replacing of an
Xid with FrozenTransactionId, which is not what we do for MultiXactIds.

Andres Freund
Some adjustments by Álvaro Herrera
This commit is contained in:
Alvaro Herrera
2013-09-16 15:45:00 -03:00
parent 374652fb6d
commit 3451faaec8
11 changed files with 61 additions and 61 deletions
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12
src/backend/commands/vacuumlazy.c
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@ -125,7 +125,7 @@ static int elevel = -1;
static TransactionId OldestXmin;
static TransactionId FreezeLimit;
static MultiXactId MultiXactFrzLimit;
static MultiXactId MultiXactCutoff;
static BufferAccessStrategy vac_strategy;
@ -203,7 +203,7 @@ lazy_vacuum_rel(Relation onerel, VacuumStmt *vacstmt,
vacuum_set_xid_limits(vacstmt->freeze_min_age, vacstmt->freeze_table_age,
onerel->rd_rel->relisshared,
&OldestXmin, &FreezeLimit, &freezeTableLimit,
&MultiXactFrzLimit);
&MultiXactCutoff);
scan_all = TransactionIdPrecedesOrEquals(onerel->rd_rel->relfrozenxid,
freezeTableLimit);
@ -273,7 +273,7 @@ lazy_vacuum_rel(Relation onerel, VacuumStmt *vacstmt,
if (vacrelstats->scanned_pages < vacrelstats->rel_pages)
new_frozen_xid = InvalidTransactionId;
new_min_multi = MultiXactFrzLimit;
new_min_multi = MultiXactCutoff;
if (vacrelstats->scanned_pages < vacrelstats->rel_pages)
new_min_multi = InvalidMultiXactId;
@ -867,7 +867,7 @@ lazy_scan_heap(Relation onerel, LVRelStats *vacrelstats,
* freezing. Note we already have exclusive buffer lock.
*/
if (heap_freeze_tuple(tuple.t_data, FreezeLimit,
MultiXactFrzLimit))
MultiXactCutoff))
frozen[nfrozen++] = offnum;
}
} /* scan along page */
@ -885,7 +885,7 @@ lazy_scan_heap(Relation onerel, LVRelStats *vacrelstats,
XLogRecPtr recptr;
recptr = log_heap_freeze(onerel, buf, FreezeLimit,
MultiXactFrzLimit, frozen, nfrozen);
MultiXactCutoff, frozen, nfrozen);
PageSetLSN(page, recptr);
}
}
@ -1230,7 +1230,7 @@ lazy_check_needs_freeze(Buffer buf)
tupleheader = (HeapTupleHeader) PageGetItem(page, itemid);
if (heap_tuple_needs_freeze(tupleheader, FreezeLimit,
MultiXactFrzLimit, buf))
MultiXactCutoff, buf))
return true;
} /* scan along page */