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Use LW_SHARED in WakeupWalSummarizer() for WALSummarizerLock lock - Mailing list pgsql-hackers

From Masahiko Sawada
Subject Use LW_SHARED in WakeupWalSummarizer() for WALSummarizerLock lock
Date
Msg-id CAD21AoDdKhf_9oriEYxY-JCdF+Oe_muhca3pcdkMEdBMzyHyKw@mail.gmail.com
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Responses Re: Use LW_SHARED in WakeupWalSummarizer() for WALSummarizerLock lock
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Hi all,

While reading walsummarizer.c code, I noticed that in
WakeupWalSummarizer() we acquire the WALSummarizerLock lock in
LW_EXCLUSIVE mode despite only reading
WalSummarizerCtl->summarizer_pgprocno. The attached patch uses
LW_SHARED mode instead. Feedback is very welcome.

Regards,

-- 
Masahiko Sawada
Amazon Web Services: https://aws.amazon.com
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