pgsql: Fix initialization of dsa.c free area counter.

Fix initialization of dsa.c free area counter.

The backend local copy of dsa_area_control->freed_segment_counter was
not properly initialized / maintained. This could, if unlucky, lead
to keeping attached to a segment for too long.

Found via valgrind bleat on buildfarm animal skink.

Author: Thomas Munro
Discussion: /messages/by-id/20170407164935.obsf2jipjfos5zei@alap3.anarazel.de

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/c45b1d2283c6631b990de25098ea389a1b96277a

Modified Files
--------------
src/backend/utils/mmgr/dsa.c | 2 ++
1 file changed, 2 insertions(+)

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