Обсуждение: pgsql: Fix attach-related race condition in shm_mq_send_bytes.

Fix attach-related race condition in shm_mq_send_bytes.

Spotted by Antonin Houska.

Branch
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REL9_4_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/e9215461d2a6081812d9c3619c9ec81e5682fe0f

Modified Files
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src/backend/storage/ipc/shm_mq.c |   38 +++++++++++++++++++++-----------------
1 file changed, 21 insertions(+), 17 deletions(-)