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mdbx: backport - ITS#8323 Fix nested commit.

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Must remove our spilled pages from parent's dirty list

Change-Id: Ic37bcea4975801e48832968ea38050064a581d21
This commit is contained in:
Howard Chu
2015-11-23 13:11:29 +00:00
committed by Leo Yuriev
parent 3e74ab2aee
commit 3eb38d2f1b
2 changed files with 20 additions and 0 deletions
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1
CHANGES
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@@ -20,6 +20,7 @@ LMDB 0.9.17 Release Engineering
Fix ITS#8312 loose pages in nested txn
Fix ITS#8313 mdb_rebalance dummy cursor
Fix ITS#8315 dirty_room in nested txn
Fix ITS#8323 dirty_list in nested txn
Fix ITS#8316 page_merge cursor tracking
Fix ITS#8319 mdb_load error messages
Fix ITS#8320 mdb_load plaintext input

19
mdb.c
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@@ -3761,6 +3761,25 @@ mdb_txn_commit(MDB_txn *txn)
pspill[0] = y;
}
/* Remove anything in our spill list from parent's dirty list */
if (txn->mt_spill_pgs && txn->mt_spill_pgs[0]) {
for (i=1; i<=txn->mt_spill_pgs[0]; i++) {
MDB_ID pn = txn->mt_spill_pgs[i];
if (pn & 1)
continue; /* deleted spillpg */
pn >>= 1;
y = mdb_mid2l_search(dst, pn);
if (y <= dst[0].mid && dst[y].mid == pn) {
free(dst[y].mptr);
while (y < dst[0].mid) {
dst[y] = dst[y+1];
y++;
}
dst[0].mid--;
}
}
}
/* Find len = length of merging our dirty list with parent's */
x = dst[0].mid;
dst[0].mid = 0; /* simplify loops */