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fix oversight converting buf_id to Buffer - Mailing list pgsql-hackers

From Qingqing Zhou
Subject fix oversight converting buf_id to Buffer
Date
Msg-id CAJjS0u2ai9ooUisKtkV8cuVUtEkMTsbK8c7juNAjv8K11zeCQg@mail.gmail.com
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Responses Re: fix oversight converting buf_id to Buffer  (Andres Freund <andres@anarazel.de>)
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Attached patch fixes oversights converting buf_id to Buffer in
PrintBufferDescs() and InvalidateBuffer(). Especially for the latter,
the reason we haven't seen any reports of the issue might be that it
needs certain concurrent conditions to be true.

Along the line, it also changes all direct maths against buf_id to use
BufferDescriptorGetBuffer() instead.

Regards,
Qingqing
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