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Re: Move PinBuffer and UnpinBuffer to atomics - Mailing list pgsql-hackers

From YUriy Zhuravlev
Subject Re: Move PinBuffer and UnpinBuffer to atomics
Date
Msg-id 4667801.qI0OGLBvFV@dinodell
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In response to Re: Move PinBuffer and UnpinBuffer to atomics  (Andres Freund <andres@anarazel.de>)
Responses Re: Move PinBuffer and UnpinBuffer to atomics  (Andres Freund <andres@anarazel.de>)
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On Friday 11 September 2015 18:14:21 Andres Freund wrote:
> This way we can leave the for (;;) loop
> in BufferAlloc() thinking that the buffer is unused (and can't be further
> pinned because of the held spinlock!)

We lost lock after PinBuffer_Locked in BufferAlloc. Therefore, in essence, 
nothing has changed. 
-- 
YUriy Zhuravlev
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

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