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Fix free page reclaim and dbs table update

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Can re-use free pages 1 txn earlier
Must update all dbs tables on txn commit
This commit is contained in:
Howard Chu 2011-08-26 00:01:16 -07:00
parent 94718fab00
commit 13c663f666
1 changed files with 6 additions and 10 deletions
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16
libraries/libmdb/mdb.c
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@ -553,7 +553,7 @@ mdb_alloc_page(MDB_txn *txn, MDB_page *parent, unsigned int parent_idx, int num)
if (txn->mt_txnid > 2) {
oldest = txn->mt_txnid - 2;
oldest = txn->mt_txnid - 1;
if (!txn->mt_env->me_pghead && txn->mt_dbs[FREE_DBI].md_root != P_INVALID) {
/* See if there's anything in the free DB */
MDB_pageparent mpp;
@ -1083,16 +1083,12 @@ done:
{
int toggle = !env->me_db_toggle;
for (i = 2; i < env->me_numdbs; i++) {
if (txn->mt_dbxs[i].md_dirty) {
env->me_dbs[toggle][i] = txn->mt_dbs[i];
txn->mt_dbxs[i].md_dirty = 0;
}
}
for (i = env->me_numdbs; i < txn->mt_numdbs; i++) {
txn->mt_dbxs[i].md_dirty = 0;
env->me_dbxs[i] = txn->mt_dbxs[i];
for (i = 2; i < txn->mt_numdbs; i++)
env->me_dbs[toggle][i] = txn->mt_dbs[i];
for (i = 2; i < txn->mt_numdbs; i++) {
if (txn->mt_dbxs[i].md_dirty)
txn->mt_dbxs[i].md_dirty = 0;
}
env->me_db_toggle = toggle;
env->me_numdbs = txn->mt_numdbs;