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lmdb: account pages from penging txn in mdb_txn_straggler().

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Backport from master: f756a26a43ad933a98909a974ae84f7d43c30266.

Change-Id: I0f8af7af722977ddeff88d2e8129bcde23ffd06f
This commit is contained in:
Leo Yuriev 2015-01-13 00:12:13 +03:00
parent 8375bb0c8d
commit 3015e8d03e
1 changed files with 2 additions and 1 deletions
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mdb.c
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@ -3079,7 +3079,8 @@ mdb_txn_straggler(MDB_txn *txn, int *percent)
meta = env->me_metas[ mdb_env_pick_meta(env) ];
if (percent) {
long cent = env->me_maxpg / 100;
*percent = (meta->mm_last_pg + cent / 2 + 1) / (cent ? cent : 1);
long last = env->me_txn ? env->me_txn0->mt_next_pgno : meta->mm_last_pg;
*percent = (last + cent / 2) / (cent ? cent : 1);
}
lag = meta->mm_txnid - txn->mt_u.reader->mr_txnid;
return (0 > (long) lag) ? ~0u >> 1: lag;