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Fix memory leak in xlogreader facility.

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XLogReaderFree failed to free the per-block data buffers, when they
happened to not be used by the latest read WAL record.

Michael Paquier. Backpatch to 9.5, where the per-block buffers were added.
This commit is contained in:
Heikki Linnakangas 2015-07-27 18:27:27 +03:00
parent 202aea62a8
commit 03a0a3532b
1 changed files with 2 additions and 5 deletions
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7
src/backend/access/transam/xlogreader.c
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@ -126,11 +126,8 @@ XLogReaderFree(XLogReaderState *state)
for (block_id = 0; block_id <= state->max_block_id; block_id++) for (block_id = 0; block_id <= state->max_block_id; block_id++)
{ {
if (state->blocks[block_id].in_use) if (state->blocks[block_id].data)
{ pfree(state->blocks[block_id].data);
if (state->blocks[block_id].data)
pfree(state->blocks[block_id].data);
}
} }
if (state->main_data) if (state->main_data)
pfree(state->main_data); pfree(state->main_data);