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Merge remote-tracking branch 'origin/mdb.RE/0.9'

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This commit is contained in:
Quanah Gibson-Mount 2015-04-16 14:59:07 -05:00
commit dc52a6fcab
2 changed files with 17 additions and 2 deletions
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1
libraries/liblmdb/CHANGES
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@ -4,6 +4,7 @@ LMDB 0.9.15 Release Engineering
Fix txn init (ITS#7961,#7987)
Fix MDB_PREV_DUP (ITS#7955,#7671)
Fix compact of empty env (ITS#7956)
Fix mdb_rebalance collapsing root (ITS#8062)
Fix mdb_load with large values (ITS#8066)
Added workaround for fdatasync bug in ext3fs
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18
libraries/liblmdb/mdb.c
View File

@ -7717,12 +7717,12 @@ mdb_rebalance(MDB_cursor *mc)
m3 = m2;
if (m3 == mc || m3->mc_snum < mc->mc_snum) continue;
if (m3->mc_pg[0] == mp) {
m3->mc_snum--;
m3->mc_top--;
for (i=0; i<m3->mc_snum; i++) {
m3->mc_pg[i] = m3->mc_pg[i+1];
m3->mc_ki[i] = m3->mc_ki[i+1];
}
m3->mc_snum--;
m3->mc_top--;
}
}
}
@ -7790,9 +7790,23 @@ mdb_rebalance(MDB_cursor *mc)
if (mc->mc_ki[ptop] == 0) {
rc = mdb_page_merge(&mn, mc);
} else {
MDB_cursor dummy;
oldki += NUMKEYS(mn.mc_pg[mn.mc_top]);
mn.mc_ki[mn.mc_top] += mc->mc_ki[mn.mc_top] + 1;
/* We want mdb_rebalance to find mn when doing fixups */
if (mc->mc_flags & C_SUB) {
dummy.mc_next = mc->mc_txn->mt_cursors[mc->mc_dbi];
mc->mc_txn->mt_cursors[mc->mc_dbi] = &dummy;
dummy.mc_xcursor = (MDB_xcursor *)&mn;
} else {
mn.mc_next = mc->mc_txn->mt_cursors[mc->mc_dbi];
mc->mc_txn->mt_cursors[mc->mc_dbi] = &mn;
}
rc = mdb_page_merge(mc, &mn);
if (mc->mc_flags & C_SUB)
mc->mc_txn->mt_cursors[mc->mc_dbi] = dummy.mc_next;
else
mc->mc_txn->mt_cursors[mc->mc_dbi] = mn.mc_next;
mdb_cursor_copy(&mn, mc);
}
mc->mc_flags &= ~C_EOF;